Recognised as Colour
#CB031D
- #CB031D
- Red
- Dark
- Nearest: Crimson
#CB031D is a red with RGB values 203, 3, 29 and HSL 352°, 97%, 40%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#CB031D#CB031D
HEX#CB031D
RGBrgb(203, 3, 29)
RGB (0–1)0.7961, 0.0118, 0.1137
RGB percentages79.6%, 1.2%, 11.4%
HSLhsl(352.2, 97.1%, 40.4%)
HSV / HSBhsv(352.2, 98.5%, 79.6%)
CMYK0%, 98.5%, 85.7%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,304,605
CSS custom property--colour: #CB031D;
Brightness & contrast
Relative luminance0.1285WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.88:1
Contrast with white5.88:1WCAG normal text: AA
Contrast with black3.57:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#34FCE2
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.88:1WCAG large text: AAA
Contrast with black, large text3.57:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#03CBB1
Analogous#CB0381, #CB4D03
Triadic#1DCB03, #031DCB
Split complementary#03CB4D, #0381CB
Tetradic#81CB03, #03CBB1, #4D03CB
Tints, shades & saturation
Channel breakdown
R203
G3
B29
Red203 (79.6%)
Green3 (1.2%)
Blue29 (11.4%)
Hue352.2°
Saturation (HSL)97.09%
Lightness40.39%
Dominant channelRed
Hex per channelR CB · G 03 · B 1D
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