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Recognised as Colour

#A6632D

  • #A6632D
  • Orange
  • Dark
  • Nearest: Sienna

#A6632D is a orange with RGB values 166, 99, 45 and HSL 27°, 57%, 41%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#A6632D#A6632D
HEX#A6632D
RGBrgb(166, 99, 45)
RGB (0–1)0.651, 0.3882, 0.1765
RGB percentages65.1%, 38.8%, 17.6%
HSLhsl(26.8, 57.3%, 41.4%)
HSV / HSBhsv(26.8, 72.9%, 65.1%)
CMYK0%, 40.4%, 72.9%, 34.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,904,365
CSS custom property--colour: #A6632D;

Brightness & contrast

Relative luminance0.1722WCAG 2.x, 0 is black and 1 is white
Perceived brightness119.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.73:1
Contrast with white4.73:1WCAG normal text: AA
Contrast with black4.44:1WCAG normal text: Fail
Greyscale equivalent#6D6D6D
Inverted#599CD2

Colour vision & accessibility

Protanopia#776A27no red cones; affects about 1% of men; ΔE 26.4 from the original
Deuteranopia#87792Dno green cones; the most common form, about 1% of men; ΔE 26.7 from the original
Tritanopia#B55557no blue cones; rare, and affects men and women equally; ΔE 28.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.73:1WCAG large text: AAA
Contrast with black, large text4.44:1WCAG large text: AA

Named colours

Nearest named CSS colourSienna (#A0522D)ΔE 9.93, clearly different but related
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#2D70A6
Analogous#A62D34, #A6A02D
Triadic#2DA663, #632DA6
Split complementary#2DA6A0, #2D33A6
Tetradic#34A62D, #2D70A6, #A02DA6

Tints, shades & saturation

Lighter +40%#EBCDB4
Lighter +30%#E0B28C
Lighter +20%#D59664
Lighter +10%#CA7B3C
Darker −10%#7E4B22
Darker −20%#563317
Darker −30%#2E1B0C
Darker −40%#060301
More saturated +25%#C06013
Less saturated −25%#8C6647

Channel breakdown

R166
G99
B45
Red166 (65.1%)
Green99 (38.8%)
Blue45 (17.6%)
Hue26.78°
Saturation (HSL)57.35%
Lightness41.37%
Dominant channelRed
Hex per channelR A6 · G 63 · B 2D

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Every value on this page was computed from “a6632d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.