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Recognised as Colour

#A37A80

  • #A37A80
  • Red
  • Dark
  • Nearest: Rosy brown

#A37A80 is a red with RGB values 163, 122, 128 and HSL 351°, 18%, 56%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#A37A80#A37A80
HEX#A37A80
RGBrgb(163, 122, 128)
RGB (0–1)0.6392, 0.4784, 0.502
RGB percentages63.9%, 47.8%, 50.2%
HSLhsl(351.2, 18.2%, 55.9%)
HSV / HSBhsv(351.2, 25.2%, 63.9%)
CMYK0%, 25.2%, 21.5%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,713,728
CSS custom property--colour: #A37A80;

Brightness & contrast

Relative luminance0.23264WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.65:1
Contrast with white3.71:1WCAG normal text: Fail
Contrast with black5.65:1WCAG normal text: AA
Greyscale equivalent#838383
Inverted#5C857F

Colour vision & accessibility

Protanopia#808080no red cones; affects about 1% of men; ΔE 17.2 from the original
Deuteranopia#8A877Fno green cones; the most common form, about 1% of men; ΔE 17.4 from the original
Tritanopia#AB777Cno blue cones; rare, and affects men and women equally; ΔE 4.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.71:1WCAG large text: AA
Contrast with black, large text5.65:1WCAG large text: AAA

Named colours

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 9.03, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#7AA39D
Analogous#A37A94, #A3897A
Triadic#80A37A, #7A80A3
Split complementary#7AA389, #7A94A3
Tetradic#94A37A, #7AA39D, #897AA3

Tints, shades & saturation

Lighter +40%#F6F3F3
Lighter +30%#E2D4D6
Lighter +20%#CDB6BA
Lighter +10%#B8989D
Darker −10%#8A6066
Darker −20%#6C4B50
Darker −30%#4E3639
Darker −40%#302123
More saturated +25%#BF5E6C
Less saturated −25%#8F8F8F

Channel breakdown

R163
G122
B128
Red163 (63.9%)
Green122 (47.8%)
Blue128 (50.2%)
Hue351.22°
Saturation (HSL)18.22%
Lightness55.88%
Dominant channelRed
Hex per channelR A3 · G 7A · B 80

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Every value on this page was computed from “a37a80” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.