Recognised as Colour
#AB182A
- #AB182A
- Red
- Dark
- Nearest: Brown
#AB182A is a red with RGB values 171, 24, 42 and HSL 353°, 75%, 38%. 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
#AB182A#AB182A
HEX#AB182A
RGBrgb(171, 24, 42)
RGB (0–1)0.6706, 0.0941, 0.1647
RGB percentages67.1%, 9.4%, 16.5%
HSLhsl(352.7, 75.4%, 38.2%)
HSV / HSBhsv(352.7, 86%, 67.1%)
CMYK0%, 86%, 75.4%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,212,842
CSS custom property--colour: #AB182A;
Brightness & contrast
Relative luminance0.09478WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.3 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#393939
Inverted#54E7D5
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#18AB99
Analogous#AB1873, #AB5018
Triadic#2AAB18, #182AAB
Split complementary#18AB50, #1873AB
Tetradic#73AB18, #18AB99, #5018AB
Tints, shades & saturation
Channel breakdown
R171
G24
B42
Red171 (67.1%)
Green24 (9.4%)
Blue42 (16.5%)
Hue352.65°
Saturation (HSL)75.38%
Lightness38.24%
Dominant channelRed
Hex per channelR AB · G 18 · B 2A
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