Colour
#C40137
- #C40137
- Red
- Dark
- Nearest: Crimson
#C40137 is a red with RGB values 196, 1, 55 and HSL 343°, 99%, 39%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#C40137#C40137
HEX#C40137
RGBrgb(196, 1, 55)
RGB (0–1)0.7686, 0.0039, 0.2157
RGB percentages76.9%, 0.4%, 21.6%
HSLhsl(343.4, 99%, 38.6%)
HSV / HSBhsv(343.4, 99.5%, 76.9%)
CMYK0%, 99.5%, 71.9%, 23.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,845,367
CSS custom property--colour: #C40137;
Brightness & contrast
Relative luminance0.12033WCAG 2.x, 0 is black and 1 is white
Perceived brightness108.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.16:1
Contrast with white6.16:1WCAG normal text: AA
Contrast with black3.41:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#3BFEC8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.16:1WCAG large text: AAA
Contrast with black, large text3.41:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#01C48E
Analogous#C40199, #C42C01
Triadic#37C401, #0137C4
Split complementary#01C42C, #0199C4
Tetradic#99C401, #01C48E, #2C01C4
Tints, shades & saturation
Channel breakdown
R196
G1
B55
Red196 (76.9%)
Green1 (0.4%)
Blue55 (21.6%)
Hue343.38°
Saturation (HSL)98.98%
Lightness38.63%
Dominant channelRed
Hex per channelR C4 · G 01 · B 37
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