Recognised as Colour
#D23A09
- #D23A09
- Red
- Dark
- Nearest: Tomato
#D23A09 is a red with RGB values 210, 58, 9 and HSL 15°, 92%, 43%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Tomato.
Colour values
#D23A09#D23A09
HEX#D23A09
RGBrgb(210, 58, 9)
RGB (0–1)0.8235, 0.2275, 0.0353
RGB percentages82.4%, 22.7%, 3.5%
HSLhsl(14.6, 91.8%, 42.9%)
HSV / HSBhsv(14.6, 95.7%, 82.4%)
CMYK0%, 72.4%, 95.7%, 17.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,777,417
CSS custom property--colour: #D23A09;
Brightness & contrast
Relative luminance0.16747WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.83:1
Contrast with white4.83:1WCAG normal text: AA
Contrast with black4.35:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#2DC5F6
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.83:1WCAG large text: AAA
Contrast with black, large text4.35:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#09A1D2
Analogous#D2093D, #D29E09
Triadic#09D23A, #3A09D2
Split complementary#09D29F, #093DD2
Tetradic#3DD209, #09A1D2, #9F09D2
Tints, shades & saturation
Channel breakdown
R210
G58
B9
Red210 (82.4%)
Green58 (22.7%)
Blue9 (3.5%)
Hue14.63°
Saturation (HSL)91.78%
Lightness42.94%
Dominant channelRed
Hex per channelR D2 · G 3A · B 09
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