Colour

#57111B

#57111B
Red
Dark
Nearest: Maroon

#57111B is a red with RGB values 87, 17, 27 and HSL 351°, 67%, 20%. It is a dark colour, so white text on it reaches 14:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#57111B#57111B

HEX#57111B

RGBrgb(87, 17, 27)

RGB (0–1)0.3412, 0.0667, 0.1059

RGB percentages34.1%, 6.7%, 10.6%

HSLhsl(351.4, 67.3%, 20.4%)

HSV / HSBhsv(351.4, 80.5%, 34.1%)

CMYK0%, 80.5%, 69%, 65.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,706,011

CSS custom property--colour: #57111B;

Brightness & contrast

Relative luminance0.02506WCAG 2.x, 0 is black and 1 is white

Perceived brightness50.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.99:1

Contrast with white13.99:1WCAG normal text: AAA

Contrast with black1.5:1WCAG normal text: Fail

Greyscale equivalent#212121

Inverted#A8EEE4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#25231Bno red cones; affects about 1% of men; ΔE 34.1 from the original

Deuteranopia#363119no green cones; the most common form, about 1% of men; ΔE 34.4 from the original

Tritanopia#600015no blue cones; rare, and affects men and women equally; ΔE 9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text13.99:1WCAG large text: AAA

Contrast with black, large text1.5:1WCAG large text: Fail

Named colours

Maroon · ΔE 30.7 Brown · ΔE 31.6 Sienna · ΔE 34.5 Saddle brown · ΔE 34.7 Dark red · ΔE 35.5 Indian red · ΔE 38.7

Nearest named CSS colourMaroon (#800000)ΔE 30.66, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#11574D

Analogous#57113E, #572A11

Triadic#1B5711, #111B57

Split complementary#11572A, #113E57

Tetradic#3E5711, #11574D, #2A1157

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#DE5669

Lighter +30%#D62B44

Lighter +20%#AC2235

Lighter +10%#821928

Darker −10%#2C090E

Darker −20%#020001

Darker −30%#000000

Darker −40%#000000

More saturated +25%#640412

Less saturated −25%#4A1E24

Channel breakdown

R87

G17

B27

Red87 (34.1%)

Green17 (6.7%)

Blue27 (10.6%)

Hue351.43°

Saturation (HSL)67.31%

Lightness20.39%

Dominant channelRed

Hex per channelR 57 · G 11 · B 1B

Keep nerding

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#57111B

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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