Recognised as Colour
#A3363B
- #A3363B
- Red
- Dark
- Nearest: Brown
#A3363B is a red with RGB values 163, 54, 59 and HSL 357°, 50%, 43%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Brown.
Colour values
#A3363B#A3363B
HEX#A3363B
RGBrgb(163, 54, 59)
RGB (0–1)0.6392, 0.2118, 0.2314
RGB percentages63.9%, 21.2%, 23.1%
HSLhsl(357.2, 50.2%, 42.5%)
HSV / HSBhsv(357.2, 66.9%, 63.9%)
CMYK0%, 66.9%, 63.8%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,696,251
CSS custom property--colour: #A3363B;
Brightness & contrast
Relative luminance0.10741WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.67:1
Contrast with white6.67:1WCAG normal text: AA
Contrast with black3.15:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#5CC9C4
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.67:1WCAG large text: AAA
Contrast with black, large text3.15:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#36A39E
Analogous#A33671, #A36736
Triadic#3BA336, #363BA3
Split complementary#36A367, #3671A3
Tetradic#72A336, #36A39E, #6836A3
Tints, shades & saturation
Channel breakdown
R163
G54
B59
Red163 (63.9%)
Green54 (21.2%)
Blue59 (23.1%)
Hue357.25°
Saturation (HSL)50.23%
Lightness42.55%
Dominant channelRed
Hex per channelR A3 · G 36 · B 3B
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