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Recognised as Colour

#A72E1F

  • #A72E1F
  • Red
  • Dark
  • Nearest: Brown

#A72E1F is a red with RGB values 167, 46, 31 and HSL 7°, 69%, 39%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#A72E1F#A72E1F
HEX#A72E1F
RGBrgb(167, 46, 31)
RGB (0–1)0.6549, 0.1804, 0.1216
RGB percentages65.5%, 18%, 12.2%
HSLhsl(6.6, 68.7%, 38.8%)
HSV / HSBhsv(6.6, 81.4%, 65.5%)
CMYK0%, 72.5%, 81.4%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,956,319
CSS custom property--colour: #A72E1F;

Brightness & contrast

Relative luminance0.10268WCAG 2.x, 0 is black and 1 is white
Perceived brightness98.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.88:1
Contrast with white6.88:1WCAG normal text: AA
Contrast with black3.05:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#58D1E0

Colour vision & accessibility

Protanopia#52491Cno red cones; affects about 1% of men; ΔE 52.6 from the original
Deuteranopia#706419no green cones; the most common form, about 1% of men; ΔE 52.9 from the original
Tritanopia#B8002Cno blue cones; rare, and affects men and women equally; ΔE 16.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.88:1WCAG large text: AAA
Contrast with black, large text3.05:1WCAG large text: AA

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 7.39, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1F98A7
Analogous#A71F54, #A7721F
Triadic#1FA72E, #2E1FA7
Split complementary#1FA772, #1F54A7
Tetradic#54A71F, #1F98A7, #721FA7

Tints, shades & saturation

Lighter +40%#EEACA4
Lighter +30%#E68579
Lighter +20%#DE5E4E
Lighter +10%#D23A27
Darker −10%#7C2217
Darker −20%#51160F
Darker −30%#260A07
Darker −40%#000000
More saturated +25%#C01B06
Less saturated −25%#8E4138

Channel breakdown

R167
G46
B31
Red167 (65.5%)
Green46 (18%)
Blue31 (12.2%)
Hue6.62°
Saturation (HSL)68.69%
Lightness38.82%
Dominant channelRed
Hex per channelR A7 · G 2E · B 1F

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Every value on this page was computed from “a72e1f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.