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Recognised as Colour

#81223D

  • #81223D
  • Red
  • Dark
  • Nearest: Brown

#81223D is a red with RGB values 129, 34, 61 and HSL 343°, 58%, 32%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#81223D#81223D
HEX#81223D
RGBrgb(129, 34, 61)
RGB (0–1)0.5059, 0.1333, 0.2392
RGB percentages50.6%, 13.3%, 23.9%
HSLhsl(342.9, 58.3%, 32%)
HSV / HSBhsv(342.9, 73.6%, 50.6%)
CMYK0%, 73.6%, 52.7%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,462,909
CSS custom property--colour: #81223D;

Brightness & contrast

Relative luminance0.06148WCAG 2.x, 0 is black and 1 is white
Perceived brightness78 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.42:1
Contrast with white9.42:1WCAG normal text: AAA
Contrast with black2.23:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#7EDDC2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#393A3Eno red cones; affects about 1% of men; ΔE 43.2 from the original
Deuteranopia#524D3Bno green cones; the most common form, about 1% of men; ΔE 43.9 from the original
Tritanopia#8D0E2Dno blue cones; rare, and affects men and women equally; ΔE 13.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.42:1WCAG large text: AAA
Contrast with black, large text2.23:1WCAG large text: Fail

Named colours

Brown · ΔE 25.8Indian red · ΔE 28.1Pale violetred · ΔE 31.7Maroon · ΔE 31.8Sienna · ΔE 34.4Firebrick · ΔE 34.7
Nearest named CSS colourBrown (#A52A2A)ΔE 25.78, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#228166
Analogous#81226D, #813622
Triadic#3D8122, #223D81
Split complementary#228136, #226D81
Tetradic#6D8122, #228166, #362281

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E18EA6
Lighter +30%#D76586
Lighter +20%#CC3D66
Lighter +10%#A92D50
Darker −10%#59172A
Darker −20%#300D17
Darker −30%#080204
Darker −40%#000000
More saturated +25%#950E34
Less saturated −25%#6D3646

Channel breakdown

R129
G34
B61
Red129 (50.6%)
Green34 (13.3%)
Blue61 (23.9%)
Hue342.95°
Saturation (HSL)58.28%
Lightness31.96%
Dominant channelRed
Hex per channelR 81 · G 22 · B 3D

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Every value on this page was computed from “81223d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.