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Colour

#66536B

  • #66536B
  • Violet
  • Dark
  • Nearest: Dim grey

#66536B is a violet with RGB values 102, 83, 107 and HSL 288°, 13%, 37%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Dim grey.

Colour values

#66536B#66536B
HEX#66536B
RGBrgb(102, 83, 107)
RGB (0–1)0.4, 0.3255, 0.4196
RGB percentages40%, 32.5%, 42%
HSLhsl(287.5, 12.6%, 37.3%)
HSV / HSBhsv(287.5, 22.4%, 42%)
CMYK4.7%, 22.4%, 0%, 58%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,706,027
CSS custom property--colour: #66536B;

Brightness & contrast

Relative luminance0.10073WCAG 2.x, 0 is black and 1 is white
Perceived brightness92 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.97:1
Contrast with white6.97:1WCAG normal text: AA
Contrast with black3.01:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#99AC94

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#50586Cno red cones; affects about 1% of men; ΔE 11 from the original
Deuteranopia#545A6Ano green cones; the most common form, about 1% of men; ΔE 11.3 from the original
Tritanopia#66555Bno blue cones; rare, and affects men and women equally; ΔE 11 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.97:1WCAG large text: AAA
Contrast with black, large text3.01:1WCAG large text: AA

Named colours

Dim grey · ΔE 17.9Slate grey · ΔE 21Gray · ΔE 22.8Light slate grey · ΔE 23.3Dark slate grey · ΔE 26.3Steel blue · ΔE 30.8
Nearest named CSS colourDim grey (#696969)ΔE 17.87, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#586B53
Analogous#5A536B, #6B5364
Triadic#6B6653, #536B66
Split complementary#646B53, #536B5A
Tetradic#6B5A53, #586B53, #53646B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C9BECC
Lighter +30%#B2A1B6
Lighter +20%#9A84A0
Lighter +10%#816988
Darker −10%#4B3D4E
Darker −20%#2F2632
Darker −30%#141015
Darker −40%#000000
More saturated +25%#743B83
Less saturated −25%#5F5F5F

Channel breakdown

R102
G83
B107
Red102 (40%)
Green83 (32.5%)
Blue107 (42%)
Hue287.5°
Saturation (HSL)12.63%
Lightness37.25%
Dominant channelBlue
Hex per channelR 66 · G 53 · B 6B

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Every value on this page was computed from “66536b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.