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Recognised as Colour

#57636E

  • #57636E
  • Blue
  • Dark
  • Nearest: Dim grey

#57636E is a blue with RGB values 87, 99, 110 and HSL 209°, 12%, 39%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Dim grey.

Colour values

#57636E#57636E
HEX#57636E
RGBrgb(87, 99, 110)
RGB (0–1)0.3412, 0.3882, 0.4314
RGB percentages34.1%, 38.8%, 43.1%
HSLhsl(208.7, 11.7%, 38.6%)
HSV / HSBhsv(208.7, 20.9%, 43.1%)
CMYK20.9%, 10%, 0%, 56.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,727,086
CSS custom property--colour: #57636E;

Brightness & contrast

Relative luminance0.12076WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.15:1
Contrast with white6.15:1WCAG normal text: AA
Contrast with black3.42:1WCAG normal text: Fail
Greyscale equivalent#616161
Inverted#A89C91

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5F636Fno red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#5C606Eno green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#516666no blue cones; rare, and affects men and women equally; ΔE 7.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.15:1WCAG large text: AAA
Contrast with black, large text3.42:1WCAG large text: AA

Named colours

Dim grey · ΔE 8.6Slate grey · ΔE 11.8Dark slate grey · ΔE 14.6Gray · ΔE 14.6Light slate grey · ΔE 15Cadetblue · ΔE 26.6
Nearest named CSS colourDim grey (#696969)ΔE 8.57, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6E6257
Analogous#576E6E, #57586E
Triadic#6E5763, #636E57
Split complementary#6E5758, #6E6E57
Tetradic#6E576E, #6E6257, #586E57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2C9CF
Lighter +30%#A6AFB8
Lighter +20%#8996A2
Lighter +10%#6E7D8A
Darker −10%#404952
Darker −20%#2A3035
Darker −30%#131619
Darker −40%#000000
More saturated +25%#3E6487
Less saturated −25%#636363

Channel breakdown

R87
G99
B110
Red87 (34.1%)
Green99 (38.8%)
Blue110 (43.1%)
Hue208.7°
Saturation (HSL)11.68%
Lightness38.63%
Dominant channelBlue
Hex per channelR 57 · G 63 · B 6E

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Every value on this page was computed from “57636e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.