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Recognised as Colour

#A66B71

  • #A66B71
  • Red
  • Dark
  • Nearest: Rosy brown

#A66B71 is a red with RGB values 166, 107, 113 and HSL 354°, 25%, 54%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#A66B71#A66B71
HEX#A66B71
RGBrgb(166, 107, 113)
RGB (0–1)0.651, 0.4196, 0.4431
RGB percentages65.1%, 42%, 44.3%
HSLhsl(353.9, 24.9%, 53.5%)
HSV / HSBhsv(353.9, 35.5%, 65.1%)
CMYK0%, 35.5%, 31.9%, 34.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,906,481
CSS custom property--colour: #A66B71;

Brightness & contrast

Relative luminance0.19815WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.96:1
Contrast with white4.23:1WCAG normal text: Fail
Contrast with black4.96:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#59948E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#757471no red cones; affects about 1% of men; ΔE 25.2 from the original
Deuteranopia#847F70no green cones; the most common form, about 1% of men; ΔE 25.4 from the original
Tritanopia#B1656Dno blue cones; rare, and affects men and women equally; ΔE 7.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.23:1WCAG large text: AA
Contrast with black, large text4.96:1WCAG large text: AAA

Named colours

Rosy brown · ΔE 14.1Pale violetred · ΔE 23.7Gray · ΔE 25.3Indian red · ΔE 25.8Dim grey · ΔE 26.2Light coral · ΔE 26.9
Nearest named CSS colourRosy brown (#BC8F8F)ΔE 14.06, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6BA6A0
Analogous#A66B8F, #A6826B
Triadic#71A66B, #6B71A6
Split complementary#6BA683, #6B8FA6
Tetradic#8FA66B, #6BA6A0, #826BA6

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F3EAEB
Lighter +30%#DFCBCD
Lighter +20%#CCABAE
Lighter +10%#B98B90
Darker −10%#8B5359
Darker −20%#6B4045
Darker −30%#4B2D30
Darker −40%#2B1A1C
More saturated +25%#C44D59
Less saturated −25%#898989

Channel breakdown

R166
G107
B113
Red166 (65.1%)
Green107 (42%)
Blue113 (44.3%)
Hue353.9°
Saturation (HSL)24.89%
Lightness53.53%
Dominant channelRed
Hex per channelR A6 · G 6B · B 71

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Every value on this page was computed from “a66b71” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.