Recognised as Colour
#D51631
- #D51631
- Red
- Dark
- Nearest: Crimson
#D51631 is a red with RGB values 213, 22, 49 and HSL 352°, 81%, 46%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#D51631#D51631
HEX#D51631
RGBrgb(213, 22, 49)
RGB (0–1)0.8353, 0.0863, 0.1922
RGB percentages83.5%, 8.6%, 19.2%
HSLhsl(351.5, 81.3%, 46.1%)
HSV / HSBhsv(351.5, 89.7%, 83.5%)
CMYK0%, 89.7%, 77%, 16.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,964,849
CSS custom property--colour: #D51631;
Brightness & contrast
Relative luminance0.14942WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.27:1
Contrast with white5.27:1WCAG normal text: AA
Contrast with black3.99:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#2AE9CE
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.27:1WCAG large text: AAA
Contrast with black, large text3.99:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#16D5BA
Analogous#D51691, #D55A16
Triadic#31D516, #1631D5
Split complementary#16D55A, #1691D5
Tetradic#91D516, #16D5BA, #5A16D5
Tints, shades & saturation
Channel breakdown
R213
G22
B49
Red213 (83.5%)
Green22 (8.6%)
Blue49 (19.2%)
Hue351.52°
Saturation (HSL)81.28%
Lightness46.08%
Dominant channelRed
Hex per channelR D5 · G 16 · B 31
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