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Colour

#A66374

  • #A66374
  • Red
  • Dark
  • Nearest: Rosy brown

#A66374 is a red with RGB values 166, 99, 116 and HSL 345°, 27%, 52%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#A66374#A66374
HEX#A66374
RGBrgb(166, 99, 116)
RGB (0–1)0.651, 0.3882, 0.4549
RGB percentages65.1%, 38.8%, 45.5%
HSLhsl(344.8, 27.3%, 52%)
HSV / HSBhsv(344.8, 40.4%, 65.1%)
CMYK0%, 40.4%, 30.1%, 34.9%naive device-independent conversion; real print needs an ICC profile
24-bit integer10,904,436
CSS custom property--colour: #A66374;

Brightness & contrast

Relative luminance0.18292WCAG 2.x, 0 is black and 1 is white
Perceived brightness124.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.66:1
Contrast with white4.51:1WCAG normal text: AA
Contrast with black4.66:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#599C8B

Colour vision & accessibility

Protanopia#6D6F74no red cones; affects about 1% of men; ΔE 29.6 from the original
Deuteranopia#7E7B73no green cones; the most common form, about 1% of men; ΔE 29.8 from the original
Tritanopia#B15E69no blue cones; rare, and affects men and women equally; ΔE 8.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.51:1WCAG large text: AAA
Contrast with black, large text4.66:1WCAG large text: AAA

Named colours

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 18.97, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#63A695
Analogous#A66395, #A67463
Triadic#74A663, #6374A6
Split complementary#63A674, #6395A6
Tetradic#95A663, #63A695, #7463A6

Tints, shades & saturation

Lighter +40%#F0E5E8
Lighter +30%#DEC4CB
Lighter +20%#CBA4AE
Lighter +10%#B98391
Darker −10%#884E5D
Darker −20%#683B47
Darker −30%#472930
Darker −40%#27161A
More saturated +25%#C54465
Less saturated −25%#878283

Channel breakdown

R166
G99
B116
Red166 (65.1%)
Green99 (38.8%)
Blue116 (45.5%)
Hue344.78°
Saturation (HSL)27.35%
Lightness51.96%
Dominant channelRed
Hex per channelR A6 · G 63 · B 74

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Every value on this page was computed from “a66374” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.