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Recognised as Colour

#66617E

  • #66617E
  • Blue
  • Dark
  • Nearest: Slate grey

#66617E is a blue with RGB values 102, 97, 126 and HSL 250°, 13%, 44%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#66617E#66617E
HEX#66617E
RGBrgb(102, 97, 126)
RGB (0–1)0.4, 0.3804, 0.4941
RGB percentages40%, 38%, 49.4%
HSLhsl(250.3, 13%, 43.7%)
HSV / HSBhsv(250.3, 23%, 49.4%)
CMYK19%, 23%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,709,630
CSS custom property--colour: #66617E;

Brightness & contrast

Relative luminance0.12881WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.87:1
Contrast with white5.87:1WCAG normal text: AA
Contrast with black3.58:1WCAG normal text: Fail
Greyscale equivalent#646464
Inverted#999E81

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5A657Fno red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#5B647Dno green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#61666Bno blue cones; rare, and affects men and women equally; ΔE 15.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.87:1WCAG large text: AAA
Contrast with black, large text3.58:1WCAG large text: AA

Named colours

Slate grey · ΔE 15.6Light slate grey · ΔE 17.7Dim grey · ΔE 17.7Gray · ΔE 20.8Steel blue · ΔE 23.1Dark slate grey · ΔE 26
Nearest named CSS colourSlate grey (#708090)ΔE 15.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#797E61
Analogous#616A7E, #75617E
Triadic#7E6661, #617E66
Split complementary#7E7561, #6A7E61
Tetradic#7E616A, #797E61, #617E75

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D2D0DB
Lighter +30%#B6B3C5
Lighter +20%#9B96AF
Lighter +10%#7F7A98
Darker −10%#4F4B61
Darker −20%#373544
Darker −30%#201E28
Darker −40%#09080B
More saturated +25%#54459A
Less saturated −25%#707070

Channel breakdown

R102
G97
B126
Red102 (40%)
Green97 (38%)
Blue126 (49.4%)
Hue250.34°
Saturation (HSL)13%
Lightness43.73%
Dominant channelBlue
Hex per channelR 66 · G 61 · B 7E

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Every value on this page was computed from “66617e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.