Recognised as Colour
#A33A36
- #A33A36
- Red
- Dark
- Nearest: Brown
#A33A36 is a red with RGB values 163, 58, 54 and HSL 2°, 50%, 43%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Brown.
Colour values
#A33A36#A33A36
HEX#A33A36
RGBrgb(163, 58, 54)
RGB (0–1)0.6392, 0.2275, 0.2118
RGB percentages63.9%, 22.7%, 21.2%
HSLhsl(2.2, 50.2%, 42.5%)
HSV / HSBhsv(2.2, 66.9%, 63.9%)
CMYK0%, 64.4%, 66.9%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,697,270
CSS custom property--colour: #A33A36;
Brightness & contrast
Relative luminance0.11079WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.53:1
Contrast with white6.53:1WCAG normal text: AA
Contrast with black3.22:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#5CC5C9
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.53:1WCAG large text: AAA
Contrast with black, large text3.22:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#369FA3
Analogous#A33668, #A37136
Triadic#36A33A, #3A36A3
Split complementary#36A371, #3668A3
Tetradic#68A336, #369FA3, #7136A3
Tints, shades & saturation
Channel breakdown
R163
G58
B54
Red163 (63.9%)
Green58 (22.7%)
Blue54 (21.2%)
Hue2.2°
Saturation (HSL)50.23%
Lightness42.55%
Dominant channelRed
Hex per channelR A3 · G 3A · B 36
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