Recognised as Colour
#AB3712
- #AB3712
- Red
- Dark
- Nearest: Firebrick
#AB3712 is a red with RGB values 171, 55, 18 and HSL 15°, 81%, 37%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Firebrick.
Colour values
#AB3712#AB3712
HEX#AB3712
RGBrgb(171, 55, 18)
RGB (0–1)0.6706, 0.2157, 0.0706
RGB percentages67.1%, 21.6%, 7.1%
HSLhsl(14.5, 81%, 37.1%)
HSV / HSBhsv(14.5, 89.5%, 67.1%)
CMYK0%, 67.8%, 89.5%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,220,754
CSS custom property--colour: #AB3712;
Brightness & contrast
Relative luminance0.11434WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.39:1
Contrast with white6.39:1WCAG normal text: AA
Contrast with black3.29:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#54C8ED
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.39:1WCAG large text: AAA
Contrast with black, large text3.29:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1286AB
Analogous#AB1239, #AB8312
Triadic#12AB37, #3712AB
Split complementary#12AB84, #1239AB
Tetradic#3AAB12, #1286AB, #8412AB
Tints, shades & saturation
Channel breakdown
R171
G55
B18
Red171 (67.1%)
Green55 (21.6%)
Blue18 (7.1%)
Hue14.51°
Saturation (HSL)80.95%
Lightness37.06%
Dominant channelRed
Hex per channelR AB · G 37 · B 12
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