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Recognised as Colour

#663A07

  • #663A07
  • Orange
  • Dark
  • Nearest: Saddle brown

#663A07 is a orange with RGB values 102, 58, 7 and HSL 32°, 87%, 21%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Saddle brown.

Colour values

#663A07#663A07
HEX#663A07
RGBrgb(102, 58, 7)
RGB (0–1)0.4, 0.2275, 0.0275
RGB percentages40%, 22.7%, 2.7%
HSLhsl(32.2, 87.2%, 21.4%)
HSV / HSBhsv(32.2, 93.1%, 40%)
CMYK0%, 43.1%, 93.1%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,699,527
CSS custom property--colour: #663A07;

Brightness & contrast

Relative luminance0.05866WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.66:1
Contrast with white9.66:1WCAG normal text: AAA
Contrast with black2.17:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#99C5F8

Colour vision & accessibility

Protanopia#483E00no red cones; affects about 1% of men; ΔE 18.4 from the original
Deuteranopia#524908no green cones; the most common form, about 1% of men; ΔE 19.5 from the original
Tritanopia#703031no blue cones; rare, and affects men and women equally; ΔE 26.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.66:1WCAG large text: AAA
Contrast with black, large text2.17:1WCAG large text: Fail

Named colours

Nearest named CSS colourSaddle brown (#8B4513)ΔE 14.47, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#073366
Analogous#660B07, #626607
Triadic#07663A, #3A0766
Split complementary#076366, #0B0766
Tetradic#07660A, #073366, #660762

Tints, shades & saturation

Lighter +40%#F2A347
Lighter +30%#EF8B17
Lighter +20%#C5700E
Lighter +10%#96550A
Darker −10%#361F04
Darker −20%#070400
Darker −30%#000000
Darker −40%#000000
More saturated +25%#6D3B00
Less saturated −25%#583915

Channel breakdown

R102
G58
B7
Red102 (40%)
Green58 (22.7%)
Blue7 (2.7%)
Hue32.21°
Saturation (HSL)87.16%
Lightness21.37%
Dominant channelRed
Hex per channelR 66 · G 3A · B 07

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Every value on this page was computed from “663a07” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.