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Recognised as Colour

#A63F29

  • #A63F29
  • Red
  • Dark
  • Nearest: Brown

#A63F29 is a red with RGB values 166, 63, 41 and HSL 11°, 60%, 41%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#A63F29#A63F29
HEX#A63F29
RGBrgb(166, 63, 41)
RGB (0–1)0.651, 0.2471, 0.1608
RGB percentages65.1%, 24.7%, 16.1%
HSLhsl(10.6, 60.4%, 40.6%)
HSV / HSBhsv(10.6, 75.3%, 65.1%)
CMYK0%, 62%, 75.3%, 34.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,895,145
CSS custom property--colour: #A63F29;

Brightness & contrast

Relative luminance0.11822WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.24:1
Contrast with white6.24:1WCAG normal text: AA
Contrast with black3.36:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#59C0D6

Colour vision & accessibility

Protanopia#5C5226no red cones; affects about 1% of men; ΔE 44.7 from the original
Deuteranopia#756926no green cones; the most common form, about 1% of men; ΔE 45.4 from the original
Tritanopia#B7263Ano blue cones; rare, and affects men and women equally; ΔE 18.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.24:1WCAG large text: AAA
Contrast with black, large text3.36:1WCAG large text: AA

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 10.15, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#2990A6
Analogous#A62951, #A67E29
Triadic#29A63F, #3F29A6
Split complementary#29A67D, #2952A6
Tetradic#52A629, #2990A6, #7D29A6

Tints, shades & saturation

Lighter +40%#EBBAB0
Lighter +30%#E19787
Lighter +20%#D7735E
Lighter +10%#CD5035
Darker −10%#7D2F1F
Darker −20%#542015
Darker −30%#2B100B
Darker −40%#020101
More saturated +25%#C02E0F
Less saturated −25%#8C5043

Channel breakdown

R166
G63
B41
Red166 (65.1%)
Green63 (24.7%)
Blue41 (16.1%)
Hue10.56°
Saturation (HSL)60.39%
Lightness40.59%
Dominant channelRed
Hex per channelR A6 · G 3F · B 29

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Every value on this page was computed from “a63f29” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.