Colour
#AA0025
- #AA0025
- Red
- Dark
- Nearest: Firebrick
#AA0025 is a red with RGB values 170, 0, 37 and HSL 347°, 100%, 33%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Firebrick.
Colour values
#AA0025#AA0025
HEX#AA0025
RGBrgb(170, 0, 37)
RGB (0–1)0.6667, 0, 0.1451
RGB percentages66.7%, 0%, 14.5%
HSLhsl(346.9, 100%, 33.3%)
HSV / HSBhsv(346.9, 100%, 66.7%)
CMYK0%, 100%, 78.2%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,141,157
CSS custom property--colour: #AA0025;
Brightness & contrast
Relative luminance0.0868WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.68:1
Contrast with white7.68:1WCAG normal text: AAA
Contrast with black2.74:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#55FFDA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.68:1WCAG large text: AAA
Contrast with black, large text2.74:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#00AA85
Analogous#AA007A, #AA3000
Triadic#25AA00, #0025AA
Split complementary#00AA30, #007AAA
Tetradic#7AAA00, #00AA85, #3000AA
Tints, shades & saturation
Channel breakdown
R170
G0
B37
Red170 (66.7%)
Green0 (0%)
Blue37 (14.5%)
Hue346.94°
Saturation (HSL)100%
Lightness33.33%
Dominant channelRed
Hex per channelR AA · G 00 · B 25
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