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Recognised as Colour

#A13F3D

  • #A13F3D
  • Red
  • Dark
  • Nearest: Brown

#A13F3D is a red with RGB values 161, 63, 61 and HSL 1°, 45%, 44%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#A13F3D#A13F3D
HEX#A13F3D
RGBrgb(161, 63, 61)
RGB (0–1)0.6314, 0.2471, 0.2392
RGB percentages63.1%, 24.7%, 23.9%
HSLhsl(1.2, 45%, 43.5%)
HSV / HSBhsv(1.2, 62.1%, 63.1%)
CMYK0%, 60.9%, 62.1%, 36.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,567,485
CSS custom property--colour: #A13F3D;

Brightness & contrast

Relative luminance0.11469WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.38:1
Contrast with white6.38:1WCAG normal text: AA
Contrast with black3.29:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#5EC0C2

Colour vision & accessibility

Protanopia#58523Cno red cones; affects about 1% of men; ΔE 43.2 from the original
Deuteranopia#70673Bno green cones; the most common form, about 1% of men; ΔE 44 from the original
Tritanopia#B02C3Fno blue cones; rare, and affects men and women equally; ΔE 13 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.38:1WCAG large text: AAA
Contrast with black, large text3.29:1WCAG large text: AA

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 12.66, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#3D9FA1
Analogous#A13D6D, #A1713D
Triadic#3DA13F, #3F3DA1
Split complementary#3DA171, #3D6DA1
Tetradic#6DA13D, #3D9FA1, #713DA1

Tints, shades & saturation

Lighter +40%#E8C3C2
Lighter +30%#DA9E9D
Lighter +20%#CC7A78
Lighter +10%#BE5553
Darker −10%#7C312F
Darker −20%#572221
Darker −30%#321413
Darker −40%#0D0505
More saturated +25%#BD2421
Less saturated −25%#855A59

Channel breakdown

R161
G63
B61
Red161 (63.1%)
Green63 (24.7%)
Blue61 (23.9%)
Hue1.2°
Saturation (HSL)45.05%
Lightness43.53%
Dominant channelRed
Hex per channelR A1 · G 3F · B 3D

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Every value on this page was computed from “a13f3d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.