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Recognised as Colour

#A63E2E

  • #A63E2E
  • Red
  • Dark
  • Nearest: Brown

#A63E2E is a red with RGB values 166, 62, 46 and HSL 8°, 57%, 42%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#A63E2E#A63E2E
HEX#A63E2E
RGBrgb(166, 62, 46)
RGB (0–1)0.651, 0.2431, 0.1804
RGB percentages65.1%, 24.3%, 18%
HSLhsl(8, 56.6%, 41.6%)
HSV / HSBhsv(8, 72.3%, 65.1%)
CMYK0%, 62.7%, 72.3%, 34.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,894,894
CSS custom property--colour: #A63E2E;

Brightness & contrast

Relative luminance0.11749WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.27:1
Contrast with white6.27:1WCAG normal text: AA
Contrast with black3.35:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#59C1D1

Colour vision & accessibility

Protanopia#5A522Cno red cones; affects about 1% of men; ΔE 45.8 from the original
Deuteranopia#74692Bno green cones; the most common form, about 1% of men; ΔE 46.2 from the original
Tritanopia#B6263Bno blue cones; rare, and affects men and women equally; ΔE 16.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.27:1WCAG large text: AAA
Contrast with black, large text3.35:1WCAG large text: AA

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 8.56, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#2E96A6
Analogous#A62E5A, #A67A2E
Triadic#2EA63E, #3E2EA6
Split complementary#2EA67A, #2E5AA6
Tetradic#5AA62E, #2E96A6, #7A2EA6

Tints, shades & saturation

Lighter +40%#EBBCB5
Lighter +30%#E0988D
Lighter +20%#D47466
Lighter +10%#C9503E
Darker −10%#7E2F23
Darker −20%#562018
Darker −30%#2E110D
Darker −40%#060202
More saturated +25%#C12B13
Less saturated −25%#8C5149

Channel breakdown

R166
G62
B46
Red166 (65.1%)
Green62 (24.3%)
Blue46 (18%)
Hue8°
Saturation (HSL)56.6%
Lightness41.57%
Dominant channelRed
Hex per channelR A6 · G 3E · B 2E

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Every value on this page was computed from “a63e2e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.