Recognised as Colour
#AC103D
- #AC103D
- Red
- Dark
- Nearest: Brown
#AC103D is a red with RGB values 172, 16, 61 and HSL 343°, 83%, 37%. It is a dark colour, so white text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Brown.
Colour values
#AC103D#AC103D
HEX#AC103D
RGBrgb(172, 16, 61)
RGB (0–1)0.6745, 0.0627, 0.2392
RGB percentages67.5%, 6.3%, 23.9%
HSLhsl(342.7, 83%, 36.9%)
HSV / HSBhsv(342.7, 90.7%, 67.5%)
CMYK0%, 90.7%, 64.5%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,276,349
CSS custom property--colour: #AC103D;
Brightness & contrast
Relative luminance0.09478WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.25:1
Contrast with white7.25:1WCAG normal text: AAA
Contrast with black2.9:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#53EFC2
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.25:1WCAG large text: AAA
Contrast with black, large text2.9:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#10AC7F
Analogous#AC108B, #AC3110
Triadic#3DAC10, #103DAC
Split complementary#10AC31, #108BAC
Tetradic#8BAC10, #10AC7F, #3110AC
Tints, shades & saturation
Channel breakdown
R172
G16
B61
Red172 (67.5%)
Green16 (6.3%)
Blue61 (23.9%)
Hue342.69°
Saturation (HSL)82.98%
Lightness36.86%
Dominant channelRed
Hex per channelR AC · G 10 · B 3D
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