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Recognised as Colour

#A66933

  • #A66933
  • Orange
  • Dark
  • Nearest: Sienna

#A66933 is a orange with RGB values 166, 105, 51 and HSL 28°, 53%, 43%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#A66933#A66933
HEX#A66933
RGBrgb(166, 105, 51)
RGB (0–1)0.651, 0.4118, 0.2
RGB percentages65.1%, 41.2%, 20%
HSLhsl(28.2, 53%, 42.5%)
HSV / HSBhsv(28.2, 69.3%, 65.1%)
CMYK0%, 36.7%, 69.3%, 34.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,905,907
CSS custom property--colour: #A66933;

Brightness & contrast

Relative luminance0.18449WCAG 2.x, 0 is black and 1 is white
Perceived brightness122.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.69:1
Contrast with white4.48:1WCAG normal text: Fail
Contrast with black4.69:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#5996CC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7C6F2Dno red cones; affects about 1% of men; ΔE 23.3 from the original
Deuteranopia#8A7D33no green cones; the most common form, about 1% of men; ΔE 24.2 from the original
Tritanopia#B55C5Dno 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 text4.48:1WCAG large text: AA
Contrast with black, large text4.69:1WCAG large text: AAA

Named colours

Sienna · ΔE 12.4Saddle brown · ΔE 14.5Peru · ΔE 14.5Dark salmon · ΔE 24.7Sandy brown · ΔE 25.2Chocolate · ΔE 25.3
Nearest named CSS colourSienna (#A0522D)ΔE 12.37, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3370A6
Analogous#A63337, #A6A333
Triadic#33A669, #6933A6
Split complementary#33A6A3, #3337A6
Tetradic#37A633, #3370A6, #A333A6

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EAD1BB
Lighter +30%#DEB794
Lighter +20%#D29C6D
Lighter +10%#C68246
Darker −10%#7F5027
Darker −20%#58381B
Darker −30%#311F0F
Darker −40%#0A0603
More saturated +25%#C16718
Less saturated −25%#8B6B4E

Channel breakdown

R166
G105
B51
Red166 (65.1%)
Green105 (41.2%)
Blue51 (20%)
Hue28.17°
Saturation (HSL)53%
Lightness42.55%
Dominant channelRed
Hex per channelR A6 · G 69 · B 33

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Every value on this page was computed from “a66933” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.