Colour

#55121B

#55121B
Red
Dark
Nearest: Maroon

#55121B is a red with RGB values 85, 18, 27 and HSL 352°, 65%, 20%. It is a dark colour, so white text on it reaches 14.1:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#55121B#55121B

HEX#55121B

RGBrgb(85, 18, 27)

RGB (0–1)0.3333, 0.0706, 0.1059

RGB percentages33.3%, 7.1%, 10.6%

HSLhsl(351.9, 65%, 20.2%)

HSV / HSBhsv(351.9, 78.8%, 33.3%)

CMYK0%, 78.8%, 68.2%, 66.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,575,195

CSS custom property--colour: #55121B;

Brightness & contrast

Relative luminance0.02443WCAG 2.x, 0 is black and 1 is white

Perceived brightness49.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.11:1

Contrast with white14.11:1WCAG normal text: AAA

Contrast with black1.49:1WCAG normal text: Fail

Greyscale equivalent#212121

Inverted#AAEDE4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#24221Bno red cones; affects about 1% of men; ΔE 32.9 from the original

Deuteranopia#353019no green cones; the most common form, about 1% of men; ΔE 33.1 from the original

Tritanopia#5E0016no blue cones; rare, and affects men and women equally; ΔE 9.1 from the original

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

Contrast with white, large text14.11:1WCAG large text: AAA

Contrast with black, large text1.49:1WCAG large text: Fail

Named colours

Maroon · ΔE 31.7 Brown · ΔE 32.7 Sienna · ΔE 35 Saddle brown · ΔE 35 Dark red · ΔE 36.5 Black · ΔE 37.9

Nearest named CSS colourMaroon (#800000)ΔE 31.68, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#12554C

Analogous#55123D, #552A12

Triadic#1B5512, #121B55

Split complementary#12552A, #123D55

Tetradic#3D5512, #12554C, #2A1255

Tints, shades & saturation

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

Lighter +40%#DC5769

Lighter +30%#D32D44

Lighter +20%#A92436

Lighter +10%#7F1B28

Darker −10%#2B090E

Darker −20%#010000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#620512

Less saturated −25%#481F24

Channel breakdown

R85

G18

B27

Red85 (33.3%)

Green18 (7.1%)

Blue27 (10.6%)

Hue351.94°

Saturation (HSL)65.05%

Lightness20.2%

Dominant channelRed

Hex per channelR 55 · G 12 · B 1B

Keep nerding

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#55121B

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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