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Recognised as Colour

#8A163D

  • #8A163D
  • Red
  • Dark
  • Nearest: Brown

#8A163D is a red with RGB values 138, 22, 61 and HSL 340°, 72%, 31%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#8A163D#8A163D
HEX#8A163D
RGBrgb(138, 22, 61)
RGB (0–1)0.5412, 0.0863, 0.2392
RGB percentages54.1%, 8.6%, 23.9%
HSLhsl(339.8, 72.5%, 31.4%)
HSV / HSBhsv(339.8, 84.1%, 54.1%)
CMYK0%, 84.1%, 55.8%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,049,661
CSS custom property--colour: #8A163D;

Brightness & contrast

Relative luminance0.06314WCAG 2.x, 0 is black and 1 is white
Perceived brightness80 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.28:1
Contrast with white9.28:1WCAG normal text: AAA
Contrast with black2.26:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#75E9C2

Colour vision & accessibility

Protanopia#37383Eno red cones; affects about 1% of men; ΔE 49.8 from the original
Deuteranopia#544F3Ano green cones; the most common form, about 1% of men; ΔE 51.1 from the original
Tritanopia#970028no blue cones; rare, and affects men and women equally; ΔE 16.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.28:1WCAG large text: AAA
Contrast with black, large text2.26:1WCAG large text: Fail

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 23.79, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#168A63
Analogous#8A1677, #8A2916
Triadic#3D8A16, #163D8A
Split complementary#168A29, #16778A
Tetradic#778A16, #168A63, #29168A

Tints, shades & saturation

Lighter +40%#EB81A5
Lighter +30%#E45585
Lighter +20%#DD2966
Lighter +10%#B61D50
Darker −10%#5E0F2A
Darker −20%#320816
Darker −30%#060103
Darker −40%#000000
More saturated +25%#9E0236
Less saturated −25%#762A44

Channel breakdown

R138
G22
B61
Red138 (54.1%)
Green22 (8.6%)
Blue61 (23.9%)
Hue339.83°
Saturation (HSL)72.5%
Lightness31.37%
Dominant channelRed
Hex per channelR 8A · G 16 · B 3D

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Every value on this page was computed from “8a163d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.