Recognised as Colour
#A71B0D
- #A71B0D
- Red
- Dark
- Nearest: Firebrick
#A71B0D is a red with RGB values 167, 27, 13 and HSL 5°, 86%, 35%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Firebrick.
Colour values
#A71B0D#A71B0D
HEX#A71B0D
RGBrgb(167, 27, 13)
RGB (0–1)0.6549, 0.1059, 0.051
RGB percentages65.5%, 10.6%, 5.1%
HSLhsl(5.5, 85.6%, 35.3%)
HSV / HSBhsv(5.5, 92.2%, 65.5%)
CMYK0%, 83.8%, 92.2%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,951,437
CSS custom property--colour: #A71B0D;
Brightness & contrast
Relative luminance0.09028WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.48:1
Contrast with white7.48:1WCAG normal text: AAA
Contrast with black2.81:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#58E4F2
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.48:1WCAG large text: AAA
Contrast with black, large text2.81:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0D99A7
Analogous#A70D4C, #A7680D
Triadic#0DA71B, #1B0DA7
Split complementary#0DA768, #0D4CA7
Tetradic#4CA70D, #0D99A7, #680DA7
Tints, shades & saturation
Channel breakdown
R167
G27
B13
Red167 (65.5%)
Green27 (10.6%)
Blue13 (5.1%)
Hue5.45°
Saturation (HSL)85.56%
Lightness35.29%
Dominant channelRed
Hex per channelR A7 · G 1B · B 0D
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