Recognised as Colour
#A50015
- #A50015
- Red
- Dark
- Nearest: Firebrick
#A50015 is a red with RGB values 165, 0, 21 and HSL 352°, 100%, 32%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Firebrick.
Colour values
#A50015#A50015
HEX#A50015
RGBrgb(165, 0, 21)
RGB (0–1)0.6471, 0, 0.0824
RGB percentages64.7%, 0%, 8.2%
HSLhsl(352.4, 100%, 32.4%)
HSV / HSBhsv(352.4, 100%, 64.7%)
CMYK0%, 100%, 87.3%, 35.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,813,461
CSS custom property--colour: #A50015;
Brightness & contrast
Relative luminance0.08053WCAG 2.x, 0 is black and 1 is white
Perceived brightness90.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.04:1
Contrast with white8.04:1WCAG normal text: AAA
Contrast with black2.61:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#5AFFEA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.04:1WCAG large text: AAA
Contrast with black, large text2.61:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#00A590
Analogous#A50067, #A53E00
Triadic#15A500, #0015A5
Split complementary#00A53E, #0067A5
Tetradic#67A500, #00A590, #3E00A5
Tints, shades & saturation
Channel breakdown
R165
G0
B21
Red165 (64.7%)
Green0 (0%)
Blue21 (8.2%)
Hue352.36°
Saturation (HSL)100%
Lightness32.35%
Dominant channelRed
Hex per channelR A5 · G 00 · B 15
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