Encycolorpedia

#8cb1ae hexadecimale kleurcode

#8cb1ae Paint ChipDe hexadecimale kleurcode #8cb1ae is een medium lichte tint van cyaan. In het RGB-kleurmodel bestaat #8cb1ae uit 54.9% rood, 69.41% groen en 68.24% blauw. In de HSL-kleurruimte heeft #8cb1ae een tint van 175° (graden), 19% verzadiging en 62% lichtheid. Deze kleur heeft een geschatte golflengte van 493.26 nm.

Kleurvariaties

Kleuren bij naam

Kleurenschema's

Download: GIMP GPL Adobe ASE (Adobe Swatch Exchange) Sketch Palette

#8cb1ae lineaire gradiënt naar complementaire kleur #b38a8f

  1. #8cb1ae
  2. #94aba9
  3. #9ca4a4
  4. #a29e9e
  5. #a89799
  6. #ae9194
  7. #b38a8f

Monochromatische kleuren

  1. #6d918e
  2. #779b98
  3. #81a6a3
  4. #8cb1ae
  5. #97bcb9
  6. #a2c7c4
  7. #add3cf

Kleurtinten

#8cb1ae naar wit

  1. #8cb1ae
  2. #9fbebb
  3. #b2cbc8
  4. #c5d7d6
  5. #d8e5e3
  6. #ebf2f1
  7. #ffffff / #fff

#8cb1ae naar zwart

  1. #8cb1ae
  2. #73918f
  3. #5c7270
  4. #455554
  5. #2f3938
  6. #1b201f
  7. #000000 / #000

Verfkleuren

Vergelijkbare verf

  1. Kelly-Moore

    1. ★ Jitterbug / HL 4211-2
      #8fb1ad
      ΔE = 0.796 / LRV ≈ 40.3%
    2. ★ Acapulco Aqua / KM3221-2
      #90b3b2
      ΔE = 1.383 / LRV ≈ 41.4%
  2. Sikkens

    1. ★ P1.11.63
      #8fb1af
      ΔE = 0.817 / LRV ≈ 40.4%
    2. P8.10.66
      #9cbbbd
      ΔE = 5.014 / LRV ≈ 46.3%
  3. Cloverdale Paint

    1. ★ Acapulco Aqua / 7480
      #8bafad
      ΔE = 0.823 / LRV ≈ 39.2%
    2. Turquoise Trick / 7472
      #85b5b8
      ΔE = 3.507 / LRV ≈ 41.5%
  4. Dupont

    1. ★ CAS891
      #8eb1b0
      ΔE = 1.041 / LRV ≈ 40.3%
    2. CAS907
      #8fb1b7
      ΔE = 4.313 / LRV ≈ 40.7%
  5. Sherwin-Williams

    1. ★ Drizzle - 6479
      #8caeab
      ΔE = 1.111 / LRV ≈ 38.8%
    2. Reflecting Pool - 6486
      #7bb1b2
      ΔE = 3.805 / LRV ≈ 38.9%
  6. Caparol

    1. ★ 2622
      #90b0ac
      ΔE = 1.154 / LRV ≈ 40.0%
    2. 75 4 153 / Malachit 25
      #94b0b0
      ΔE = 2.410 / LRV ≈ 40.5%
  7. Dunn-Edwards

    1. ★ Barrier Reef / 680
      #8caeac
      ΔE = 1.184 / LRV ≈ 38.8%
    2. Treetop / 739
      #91b6ac
      ΔE = 3.545 / LRV ≈ 42.5%
  8. California Paints

    1. ★ DE 5745 - Barrier Reef
      #8caeac
      ΔE = 1.184 / LRV ≈ 38.8%
    2. DE 5710 - Treetop
      #91b6ac
      ΔE = 3.545 / LRV ≈ 42.5%
  9. Magnolia Home

    1. ★ Morning Calm / JG-77
      #8fb4b2
      ΔE = 1.229 / LRV ≈ 41.7%
  10. Sigma

    1. ★ Natural Green / S 3020-B60G
      #88b0ab
      ΔE = 1.272 / LRV ≈ 39.2%
    2. Natural Green / S 3020-B70G
      #87afa7
      ΔE = 2.584 / LRV ≈ 38.6%
  11. Nerolac

    1. ★ Pitch Pine - 2487
      #8db5b3
      ΔE = 1.518 / LRV ≈ 42.0%
    2. Cardamom - 4322
      #80a6a8
      ΔE = 4.632 / LRV ≈ 34.7%
  12. Valspar Paint

    1. ★ June Morn
      #8cb5b1
      ΔE = 1.522 / LRV ≈ 41.8%
    2. Mediterranean Dusk R268D
      #a2b7b1
      ΔE = 5.012 / LRV ≈ 44.7%
  13. CIL

    1. ★ Forest Glen
      #8eaead
      ΔE = 1.589 / LRV ≈ 39.0%
    2. Jasperware
      #8bacae
      ΔE = 2.901 / LRV ≈ 38.0%
  14. AMC

    1. ★ Alameda Aqua
      #8dafaf
      ΔE = 1.610 / LRV ≈ 39.4%
    2. Silver Green
      #85a4a1
      ΔE = 4.630 / LRV ≈ 34.1%
  15. General Paint

    1. ★ Direct Appeal / CL 2144M
      #84afae
      ΔE = 1.833 / LRV ≈ 38.6%
    2. Garden Path / CL 2114M
      #8eb0a6
      ΔE = 3.282 / LRV ≈ 39.6%
  16. Clark+Kensington

    1. ★ Ticket to Paradise / 31B-4
      #84b1b0
      ΔE = 1.876 / LRV ≈ 39.5%
    2. Beach House / 1052
      #84a4a6
      ΔE = 5.094 / LRV ≈ 34.2%
  17. Pascol

    1. ★ Foaming Seas PW070
      #86b2b2
      ΔE = 1.921 / LRV ≈ 40.1%
    2. ★ Foaming Seas PW070
      #85b0b1
      ΔE = 2.230 / LRV ≈ 39.2%
  18. Disney

    1. ★ C1-6 Lost Shadow
      #8ab3ac
      ΔE = 2.019 / LRV ≈ 40.6%
  19. Dulux Australia

    1. ★ Jade Blue / G72
      #92aeaa
      ΔE = 2.051 / LRV ≈ 39.3%
  20. Devoe Paint

    1. Jasperware / 10BG 38/119
      #8daba8
      ΔE = 2.303 / LRV ≈ 37.6%
    2. Hillside View
      #93aaa6
      ΔE = 3.501 / LRV ≈ 37.7%
  21. GM / General Motors

    1. Thume Green Firemist
      #89aca6
      ΔE = 2.322 / LRV ≈ 37.6%
    2. Frost Silver
      #93acac
      ΔE = 3.091 / LRV ≈ 38.7%
  22. Toyo Ink

    1. CF10667
      #8bb7b5
      ΔE = 2.332 / LRV ≈ 42.7%
    2. CF10674
      #88aeb3
      ΔE = 3.810 / LRV ≈ 38.8%
  23. Wattyl

    1. Soothing Seas / E67W
      #8db1b3
      ΔE = 2.343 / LRV ≈ 40.4%
    2. Magica Marina / E69W
      #80aca6
      ΔE = 3.118 / LRV ≈ 36.8%
  24. Chrysler

    1. San Gabriel Green
      #84b5b3
      ΔE = 2.553 / LRV ≈ 41.2%
    2. Glades Green
      #7cb1ad
      ΔE = 3.401 / LRV ≈ 38.7%
  25. Plascon

    1. Sea Ghost G6-E2-3
      #84b4b4
      ΔE = 2.580 / LRV ≈ 40.8%
    2. Aqueous G4-E2-3
      #90bcb4
      ΔE = 4.355 / LRV ≈ 45.2%
  26. Tamiya

    1. Tamiya 80323,XF23
      #90b5ad
      ΔE = 2.620 / LRV ≈ 42.0%
  27. Dulux

    1. 90GG 42/171
      #85b6b4
      ΔE = 2.686 / LRV ≈ 41.7%
    2. Inky Pool 3
      #7aaeb2
      ΔE = 4.527 / LRV ≈ 37.6%
  28. Duron

    1. Drizzle
      #8cb5b7
      ΔE = 2.750 / LRV ≈ 42.0%
    2. Reflecting Pool
      #7eb6b7
      ΔE = 4.107 / LRV ≈ 41.3%
  29. Glidden

    1. Gentle Turquoise / 90GG 41/143
      #8cb3b6
      ΔE = 2.875 / LRV ≈ 41.2%
    2. Kentucky Blue / 30GG 43/119
      #97b6ad
      ΔE = 3.696 / LRV ≈ 43.1%
  30. Little Greene

    1. Twist
      #8fb9b7
      ΔE = 2.883 / LRV ≈ 44.0%
  31. Dutch Boy

    1. North Coast
      #7fb1ac
      ΔE = 2.932 / LRV ≈ 38.9%
    2. Ol' Swimmin' Hole
      #7daaad
      ΔE = 4.246 / LRV ≈ 36.1%
  32. Brighto Paints

    1. 4-29-4 Seaway
      #8cb9b6
      ΔE = 2.938 / LRV ≈ 43.6%
    2. 4-30-4 Key Largo
      #85b4b6
      ΔE = 2.996 / LRV ≈ 41.0%
  33. PPG Pittsburgh Paints

    1. Parakeet Pete / PPG1143-4
      #94b1a9
      ΔE = 2.950 / LRV ≈ 40.6%
    2. Barbadian Chs-56
      #98bbb7
      ΔE = 3.839 / LRV ≈ 45.6%
  34. New Look

    1. Splash Pad / A07-06
      #80aca6
      ΔE = 3.118 / LRV ≈ 36.8%
  35. Crown Diamond

    1. 7316-41 Still Water
      #90afb2
      ΔE = 3.144 / LRV ≈ 39.8%
    2. 7314-41 Paris 1900
      #8eb7ba
      ΔE = 3.533 / LRV ≈ 43.2%
  36. Sico

    1. 6156-41 Still Water
      #90afb2
      ΔE = 3.144 / LRV ≈ 39.8%
    2. 6155-41 Paris 1900
      #8eb7ba
      ΔE = 3.533 / LRV ≈ 43.2%
  37. Taubmans

    1. Hydro / T77-5
      #83b1b4
      ΔE = 3.188 / LRV ≈ 39.6%
    2. Ebb-N-Flow / T12 47.E5
      #7daca8
      ΔE = 3.274 / LRV ≈ 36.7%
  38. Nippon Paint

    1. River Port / NP BGG 1805 T
      #84afa6
      ΔE = 3.243 / LRV ≈ 38.3%
    2. Harbour Shadow / NP BGG 1808 T
      #85aaa2
      ΔE = 3.579 / LRV ≈ 36.3%
  39. Bristol

    1. Ebb-N-Flow / P132-C4
      #7daca8
      ΔE = 3.274 / LRV ≈ 36.7%
    2. Aegean Teal / P219-N4
      #9ab1ab
      ΔE = 3.518 / LRV ≈ 41.3%
  40. Natural Color System / NCS

    1. S 2020-B40G
      #83b7b5
      ΔE = 3.285 / LRV ≈ 42.0%
    2. S 2020-B50G
      #83b6af
      ΔE = 3.483 / LRV ≈ 41.4%
  41. Opaltone / OMS

    1. 5352
      #98b5b6
      ΔE = 3.328 / LRV ≈ 43.1%
    2. 5359
      #80ab9f
      ΔE = 5.102 / LRV ≈ 36.2%
  42. British Standard

    1. BS 2660 BS 7-077 - Shadow blue
      #8ba8a4
      ΔE = 3.352 / LRV ≈ 36.2%
    2. BS 4800 16 C 35 - Green
      #9cb7b0
      ΔE = 4.006 / LRV ≈ 44.1%
  43. Porter Paints

    1. Donnegal / 403-4
      #8aaea4
      ΔE = 3.424 / LRV ≈ 38.4%
    2. Caribbean Green / 302-4
      #87b9b2
      ΔE = 3.788 / LRV ≈ 43.1%
  44. Laura Ashley

    1. 45-2 Hampton Court
      #8fb8ba
      ΔE = 3.436 / LRV ≈ 43.7%
  45. 1829

    1. Morris Blue
      #99b0aa
      ΔE = 3.446 / LRV ≈ 40.7%
  46. Evonik-Degussa

    1. 3154T Juniper Hedge
      #7daaa7
      ΔE = 3.509 / LRV ≈ 35.9%
    2. 3152T Night Owl
      #7bafaa
      ΔE = 3.613 / LRV ≈ 37.8%
  47. Scib Paints

    1. Acapulco Aqua / 7480
      #82a9aa
      ΔE = 3.521 / LRV ≈ 36.0%
    2. Turquoise Trick / 7472
      #7fb0b6
      ΔE = 4.614 / LRV ≈ 38.9%
  48. Vista Paint

    1. Acapulco Aqua
      #82a9aa
      ΔE = 3.521 / LRV ≈ 36.0%
    2. Turquoise Trick
      #7fb0b6
      ΔE = 4.614 / LRV ≈ 38.9%
  49. Berger

    1. Acapulco Aqua / 7480
      #82a9aa
      ΔE = 3.521 / LRV ≈ 36.0%
    2. Turquoise Trick / 7472
      #7fb0b6
      ΔE = 4.614 / LRV ≈ 38.9%
  50. Brillux

    1. 75.09.15
      #9cb4af
      ΔE = 3.559 / LRV ≈ 42.8%
    2. 75.15.15
      #8bb8ae
      ΔE = 3.975 / LRV ≈ 42.8%
  51. RAL

    1. RAL 6034 / Pastel turquoise
      #7fb5b5
      ΔE = 3.582 / LRV ≈ 40.9%
  52. Crown Paint

    1. Dragonfly
      #86a9ab
      ΔE = 3.600 / LRV ≈ 36.4%
  53. Pratt & Lambert

    1. Apothecary Shop Blue Light CW508
      #99b5ad
      ΔE = 3.629 / LRV ≈ 42.8%
    2. Boucl� 24-26
      #9cb8b6
      ΔE = 3.769 / LRV ≈ 44.7%
  54. Tollens

    1. TF249-3
      #8aacb0
      ΔE = 3.667 / LRV ≈ 38.0%
    2. T2025-2
      #7db7b4
      ΔE = 4.243 / LRV ≈ 41.5%
  55. Tikkurila

    1. 4907
      #90a8a6
      ΔE = 3.728 / LRV ≈ 36.7%
    2. 4906
      #9fb6b3
      ΔE = 4.108 / LRV ≈ 44.1%
  56. Martha Stewart Living

    1. Lily Pond Blue D04
      #86b5ab
      ΔE = 3.781 / LRV ≈ 41.1%
    2. Strawberry Pot Blue D05
      #93aea3
      ΔE = 4.437 / LRV ≈ 39.1%
  57. Earthpaint

    1. 5-31-3 Dawn Mist
      #99afb0
      ΔE = 3.784 / LRV ≈ 40.6%
    2. 5-30-3 Nocturnal Sea
      #9fb8b6
      ΔE = 4.299 / LRV ≈ 45.0%
  58. Coronado Paint

    1. 7472 - Turquoise Trick
      #7eadb0
      ΔE = 3.792 / LRV ≈ 37.5%
    2. 8344 - Mystic Lake
      #9cafac
      ΔE = 3.937 / LRV ≈ 40.7%
  59. Levis

    1. Mild Ocean
      #81a7a4
      ΔE = 3.796 / LRV ≈ 35.0%
    2. Kristalblauw
      #98b9bb
      ΔE = 4.191 / LRV ≈ 45.0%
  60. KILZ

    1. Blue Juniper / D841
      #96b6b9
      ΔE = 3.841 / LRV ≈ 43.4%
    2. Soothing Eucalyptus / E731
      #84bcb9
      ΔE = 4.748 / LRV ≈ 44.4%
  61. Olympic

    1. Parakeet Pete C61-3
      #96afa6
      ΔE = 3.933 / LRV ≈ 39.9%
    2. Early Spring C63-3
      #94b3a6
      ΔE = 4.836 / LRV ≈ 41.3%
  62. Games Workshop - Citadel

    1. Celestra Grey
      #90a8a8
      ΔE = 3.936 / LRV ≈ 36.8%
  63. Asian Paints

    1. Still Aqua / 7480
      #82a8aa
      ΔE = 4.000 / LRV ≈ 35.7%
    2. Vitality / 7472
      #81b0b7
      ΔE = 4.844 / LRV ≈ 39.1%
  64. Australian Standard AS2700

    1. T3 Smoke Blue
      #9eb6b1
      ΔE = 4.007 / LRV ≈ 43.9%
  65. Diamond Vogel

    1. Peg's Promise / 0702
      #93b1a6
      ΔE = 4.021 / LRV ≈ 40.4%
    2. Stormy Bay / 0484
      #9fb3b2
      ΔE = 4.251 / LRV ≈ 42.8%
  66. Humbrol

    1. 248 Rlm 78 Himmelblau
      #95b5aa
      ΔE = 4.130 / LRV ≈ 42.3%
  67. Alcro

    1. Pepparmint Parlemor
      #8fabaf
      ΔE = 4.166 / LRV ≈ 38.1%
    2. Frost Parlemor
      #8ca6aa
      ΔE = 5.239 / LRV ≈ 35.7%
  68. Pantone / PMS

    1. P 125-4 C
      #78b2b0
      ΔE = 4.209 / LRV ≈ 39.0%
    2. 2232 U
      #78b0b5
      ΔE = 5.079 / LRV ≈ 38.4%
  69. Sanderson

    1. Blue Clay
      #90aaa1
      ΔE = 4.288 / LRV ≈ 37.3%
  70. Sto

    1. 36121
      #90ada2
      ΔE = 4.302 / LRV ≈ 38.4%
    2. 36132
      #95a9a3
      ΔE = 4.491 / LRV ≈ 37.4%
  71. Focoltone

    1. 1030
      #9cb8b0
      ΔE = 4.319 / LRV ≈ 44.5%
  72. Rodda Paint

    1. Bulfinch Blue H43
      #93afb4
      ΔE = 4.344 / LRV ≈ 40.2%
    2. Longfellow H77
      #90b0a2
      ΔE = 5.138 / LRV ≈ 39.6%
  73. Colortrend

    1. Bulfinch Blue
      #93afb4
      ΔE = 4.344 / LRV ≈ 40.2%
    2. Longfellow
      #90b0a2
      ΔE = 5.138 / LRV ≈ 39.6%
  74. Ford

    1. Blue
      #8ca7a9
      ΔE = 4.353 / LRV ≈ 36.1%
    2. Cascade Green
      #7ea5a1
      ΔE = 4.678 / LRV ≈ 33.9%
  75. Audi

    1. Aeroblau Metallic / G9, LY5R
      #98b2b6
      ΔE = 4.360 / LRV ≈ 41.9%
    2. Navy Blue / L54D
      #89b2b9
      ΔE = 4.611 / LRV ≈ 40.7%
  76. Colorhouse

    1. Water .04
      #9fb4b4
      ΔE = 4.369 / LRV ≈ 43.3%
  77. Peintures MF

    1. Aquarelle
      #7cb7b5
      ΔE = 4.407 / LRV ≈ 41.5%
    2. Chatoiement vert
      #7cb4b8
      ΔE = 4.654 / LRV ≈ 40.4%
  78. Mylands of London

    1. Pale Blue
      #8bb8bd
      ΔE = 4.499 / LRV ≈ 43.4%
    2. Blue Grey
      #98a8a7
      ΔE = 4.996 / LRV ≈ 37.5%
  79. Resene

    1. Kumutoto G74-034-203
      #78afb2
      ΔE = 4.570 / LRV ≈ 37.9%
    2. Neptune G72-036-204
      #77a8ab
      ΔE = 5.235 / LRV ≈ 34.9%
  80. Diamond Paint

    1. Everglades
      #86b6aa
      ΔE = 4.645 / LRV ≈ 41.4%
  81. TRUMATCH

    1. 25-d4
      #7faaaf
      ΔE = 4.665 / LRV ≈ 36.4%
    2. 24-c3
      #78b2ab
      ΔE = 4.698 / LRV ≈ 38.8%
  82. Federal Standard

    1. Federal Standard 25352
      #92a7a1
      ΔE = 4.714 / LRV ≈ 36.3%
    2. Federal Standard 25299
      #7aa7a1
      ΔE = 4.831 / LRV ≈ 34.3%
  83. Dacia

    1. Blanc Glacier / 389
      #a0b0ac
      ΔE = 4.783 / LRV ≈ 41.5%
  84. Behr

    1. Schooner MQ6-7
      #83a4a4
      ΔE = 4.792 / LRV ≈ 34.1%
    2. Winter Surf 490D-5
      #7fb8ae
      ΔE = 5.226 / LRV ≈ 41.8%
  85. Benjamin Moore

    1. Boca Raton Blue / 711
      #83a4a4
      ΔE = 4.792 / LRV ≈ 34.1%
    2. Skydive / CSP-700
      #7fb7ad
      ΔE = 5.017 / LRV ≈ 41.4%
  86. ICI Paints

    1. Northbay 70GG 43/201
      #78b3ac
      ΔE = 4.811 / LRV ≈ 39.2%
    2. 4002 Water Blue 10BG 39/169
      #77abae
      ΔE = 4.860 / LRV ≈ 36.1%
  87. Ralph Lauren

    1. Sunwashed Blue / RLIB216
      #7da79f
      ΔE = 4.889 / LRV ≈ 34.5%
  88. Beckers

    1. Sundborn 743 / 3810-R97B
      #98b2b8
      ΔE = 5.198 / LRV ≈ 42.0%

#8cb1ae HTML & CSS voorbeelden

#8cb1ae voorgrond

Ondank is 's werelds loon.

<p style="color: #8cb1ae">…</p>

#8cb1ae achtergrond

God behoede mij voor mijn vrienden, mijn vijenden neem ik zelf voor mijn rekening.

<p style="background-color: #8cb1ae">…</p>

#8cb1ae tekst schaduw

Gen haar zoo klein of het heeft ook zijn schaduw.

<p style="text-shadow: 0.1em 0.1em 0.15em #8cb1ae">…</p>

Kleur samenstelling grafieken

Kleurruimte conversies

Decimaal
9220526
Binair
10001100, 10110001, 10101110
Hexadecimaal
#8cb1ae
LRV
≈ 40.1%
Kortste korte hex
#8aa ΔE = 2.802
RGB
rgb(140, 177, 174)
RGBA
rgba(140, 177, 174, 1.0)
rg chromaticiteit
r: 0.285, g: 0.360, b: 0.354
RYB
rood: 54.902%, geel: 62.463%, blauw: 69.412%
Android / android.graphics.Color
-7556690 / 0xff8cb1ae
HSL
hsl(175, 19%, 62%)
HSLA
hsla(175, 19%, 62%, 1.0)
HSV / HSB
tint: 175° (175.135), verzadiging: 21% (0.209), helderheid: 69% (0.694)
HSP
tint: 175.135, verzadiging: 20.904%, waargenomen helderheid: 65.270%
HSLuv (HUSL)
H: 185.091, S: 34.828, L: 69.523
Cubehelix
H: -193.013, S: 0.252, L: 0.649
TSL
T: -1.411, S: 0.074, L: 0.649
CMYK
cyaan: 21% (0.209), magenta: 0% (0.000), geel: 2% (0.017), key: 31% (0.306)
CMY
cyaan: 45% (0.451), magenta: 31% (0.306), geel: 32% (0.318)
XYZ
X: 34.175, Y: 40.074, Z: 45.971
xyY
x: 0.284, y: 0.333, Y: 40.074
CIELab
L: 69.523, a: -13.087, b: -2.586
CIELuv
L: 69.523, u: -19.018, v: -1.694
CIELCH / LCHab
L: 69.523, C: 13.340, H: 191.178
CIELUV / LCHuv
L: 69.523, C: 19.093, H: 185.091
Hunter-Lab
L: 63.304, a: -14.419, b: 1.258
CIECAM02
J: 59.992, C: 19.481, h: 193.538, Q: 152.601, M: 17.036, s: 33.412, H: 244.411
OSA-UCS
lichtheid: -10.070, geel: -0.458, groene: 2.409
LMS
L: 34.794, M: 44.261, S: 45.855
YCbCr
Y: 158.240, Cb: 132.159, Cr: 111.970
YCgCo
Y: 167.000, Cg: 10.000, Co: 26.500
YDbDr
Y: 165.595, Db: 12.651, Dr: 48.670
YPbPr
Y: 168.903, Pb: 2.755, Pr: -18.362
xvYCC
Y: 161.058, Cb: 130.420, Cr: 111.870
YIQ
Y: 165.595, I: -21.078, Q: -8.757
YUV
Y: 165.595, U: 4.138, V: -22.455
Munsell Kleursysteem
7.5BG 7/2 ΔE = 3.357
Merkkleur
Virb ΔE = 14.317

Willekeurige kleuren

Rood

Groene

Blauw