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Recognised as Colour

#55102D

  • #55102D
  • Red
  • Dark
  • Nearest: Black

#55102D is a red with RGB values 85, 16, 45 and HSL 335°, 68%, 20%. It is a dark colour, so white text on it reaches 14:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#55102D#55102D
HEX#55102D
RGBrgb(85, 16, 45)
RGB (0–1)0.3333, 0.0627, 0.1765
RGB percentages33.3%, 6.3%, 17.6%
HSLhsl(334.8, 68.3%, 19.8%)
HSV / HSBhsv(334.8, 81.2%, 33.3%)
CMYK0%, 81.2%, 47.1%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,574,701
CSS custom property--colour: #55102D;

Brightness & contrast

Relative luminance0.02491WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.02:1
Contrast with white14.02:1WCAG normal text: AAA
Contrast with black1.5:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#AAEFD2

Colour vision & accessibility

Protanopia#1F232Eno red cones; affects about 1% of men; ΔE 33.4 from the original
Deuteranopia#32312Bno green cones; the most common form, about 1% of men; ΔE 34.8 from the original
Tritanopia#5D051Dno blue cones; rare, and affects men and women equally; ΔE 12.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.02:1WCAG large text: AAA
Contrast with black, large text1.5:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 38.03, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#105538
Analogous#55104F, #551610
Triadic#2D5510, #102D55
Split complementary#105516, #104F55
Tetradic#505510, #105538, #161055

Tints, shades & saturation

Lighter +40%#DF528D
Lighter +30%#D62871
Lighter +20%#AB205A
Lighter +10%#801844
Darker −10%#2A0816
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#62032B
Less saturated −25%#481D2F

Channel breakdown

R85
G16
B45
Red85 (33.3%)
Green16 (6.3%)
Blue45 (17.6%)
Hue334.78°
Saturation (HSL)68.32%
Lightness19.8%
Dominant channelRed
Hex per channelR 55 · G 10 · B 2D

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Every value on this page was computed from “55102d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.