Recognised as Colour
#A21C19
- #A21C19
- Red
- Dark
- Nearest: Firebrick
#A21C19 is a red with RGB values 162, 28, 25 and HSL 1°, 73%, 37%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Firebrick.
Colour values
#A21C19#A21C19
HEX#A21C19
RGBrgb(162, 28, 25)
RGB (0–1)0.6353, 0.1098, 0.098
RGB percentages63.5%, 11%, 9.8%
HSLhsl(1.3, 73.3%, 36.7%)
HSV / HSBhsv(1.3, 84.6%, 63.5%)
CMYK0%, 82.7%, 84.6%, 36.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,624,025
CSS custom property--colour: #A21C19;
Brightness & contrast
Relative luminance0.08582WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.73:1
Contrast with white7.73:1WCAG normal text: AAA
Contrast with black2.72:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#5DE3E6
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.73:1WCAG large text: AAA
Contrast with black, large text2.72:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#199FA2
Analogous#A2195A, #A26119
Triadic#19A21C, #1C19A2
Split complementary#19A260, #195BA2
Tetradic#5BA219, #199FA2, #6119A2
Tints, shades & saturation
Channel breakdown
R162
G28
B25
Red162 (63.5%)
Green28 (11%)
Blue25 (9.8%)
Hue1.31°
Saturation (HSL)73.26%
Lightness36.67%
Dominant channelRed
Hex per channelR A2 · G 1C · B 19
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