Recognised as Colour
#D31131
- #D31131
- Red
- Dark
- Nearest: Crimson
#D31131 is a red with RGB values 211, 17, 49 and HSL 350°, 85%, 45%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#D31131#D31131
HEX#D31131
RGBrgb(211, 17, 49)
RGB (0–1)0.8275, 0.0667, 0.1922
RGB percentages82.7%, 6.7%, 19.2%
HSLhsl(350.1, 85.1%, 44.7%)
HSV / HSBhsv(350.1, 91.9%, 82.7%)
CMYK0%, 91.9%, 76.8%, 17.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,832,497
CSS custom property--colour: #D31131;
Brightness & contrast
Relative luminance0.14472WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.39:1
Contrast with white5.39:1WCAG normal text: AA
Contrast with black3.89:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#2CEECE
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.39:1WCAG large text: AAA
Contrast with black, large text3.89:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#11D3B3
Analogous#D31192, #D35211
Triadic#31D311, #1131D3
Split complementary#11D352, #1192D3
Tetradic#92D311, #11D3B3, #5211D3
Tints, shades & saturation
Channel breakdown
R211
G17
B49
Red211 (82.7%)
Green17 (6.7%)
Blue49 (19.2%)
Hue350.1°
Saturation (HSL)85.09%
Lightness44.71%
Dominant channelRed
Hex per channelR D3 · G 11 · B 31
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