Colour
#AA2813
- #AA2813
- Red
- Dark
- Nearest: Firebrick
#AA2813 is a red with RGB values 170, 40, 19 and HSL 8°, 80%, 37%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Firebrick.
Colour values
#AA2813#AA2813
HEX#AA2813
RGBrgb(170, 40, 19)
RGB (0–1)0.6667, 0.1569, 0.0745
RGB percentages66.7%, 15.7%, 7.5%
HSLhsl(8.3, 79.9%, 37.1%)
HSV / HSBhsv(8.3, 88.8%, 66.7%)
CMYK0%, 76.5%, 88.8%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,151,379
CSS custom property--colour: #AA2813;
Brightness & contrast
Relative luminance0.10111WCAG 2.x, 0 is black and 1 is white
Perceived brightness98.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.95:1
Contrast with white6.95:1WCAG normal text: AA
Contrast with black3.02:1WCAG normal text: Fail
Greyscale equivalent#424242
Inverted#55D7EC
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.95:1WCAG large text: AAA
Contrast with black, large text3.02:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1395AA
Analogous#AA134A, #AA7313
Triadic#13AA28, #2813AA
Split complementary#13AA73, #134AAA
Tetradic#4AAA13, #1395AA, #7313AA
Tints, shades & saturation
Channel breakdown
R170
G40
B19
Red170 (66.7%)
Green40 (15.7%)
Blue19 (7.5%)
Hue8.34°
Saturation (HSL)79.89%
Lightness37.06%
Dominant channelRed
Hex per channelR AA · G 28 · B 13
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