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Recognised as Colour

#A63140

  • #A63140
  • Red
  • Dark
  • Nearest: Brown

#A63140 is a red with RGB values 166, 49, 64 and HSL 352°, 54%, 42%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#A63140#A63140
HEX#A63140
RGBrgb(166, 49, 64)
RGB (0–1)0.651, 0.1922, 0.251
RGB percentages65.1%, 19.2%, 25.1%
HSLhsl(352.3, 54.4%, 42.2%)
HSV / HSBhsv(352.3, 70.5%, 65.1%)
CMYK0%, 70.5%, 61.4%, 34.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,891,584
CSS custom property--colour: #A63140;

Brightness & contrast

Relative luminance0.10674WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.7:1
Contrast with white6.7:1WCAG normal text: AA
Contrast with black3.13:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#59CEBF

Colour vision & accessibility

Protanopia#504C40no red cones; affects about 1% of men; ΔE 51 from the original
Deuteranopia#6E653Dno green cones; the most common form, about 1% of men; ΔE 51.7 from the original
Tritanopia#B61237no blue cones; rare, and affects men and women equally; ΔE 14.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.7:1WCAG large text: AAA
Contrast with black, large text3.13:1WCAG large text: AA

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 11.81, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#31A697
Analogous#A6317A, #A65D31
Triadic#40A631, #3140A6
Split complementary#31A65D, #317AA6
Tetradic#7AA631, #31A697, #5D31A6

Tints, shades & saturation

Lighter +40%#EAB9BF
Lighter +30%#DF919B
Lighter +20%#D36A77
Lighter +10%#C74354
Darker −10%#7F2531
Darker −20%#571A22
Darker −30%#300E12
Darker −40%#080303
More saturated +25%#C1162C
Less saturated −25%#8B4C54

Channel breakdown

R166
G49
B64
Red166 (65.1%)
Green49 (19.2%)
Blue64 (25.1%)
Hue352.31°
Saturation (HSL)54.42%
Lightness42.16%
Dominant channelRed
Hex per channelR A6 · G 31 · B 40

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Every value on this page was computed from “a63140” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.