Colour
#E03B23
- #E03B23
- Red
- Dark
- Nearest: Tomato
#E03B23 is a red with RGB values 224, 59, 35 and HSL 8°, 75%, 51%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Tomato.
Colour values
#E03B23#E03B23
HEX#E03B23
RGBrgb(224, 59, 35)
RGB (0–1)0.8784, 0.2314, 0.1373
RGB percentages87.8%, 23.1%, 13.7%
HSLhsl(7.6, 75.3%, 50.8%)
HSV / HSBhsv(7.6, 84.4%, 87.8%)
CMYK0%, 73.7%, 84.4%, 12.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,695,203
CSS custom property--colour: #E03B23;
Brightness & contrast
Relative luminance0.19097WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.82:1
Contrast with white4.36:1WCAG normal text: Fail
Contrast with black4.82:1WCAG normal text: AA
Greyscale equivalent#5C5C5C
Inverted#1FC4DC
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.36:1WCAG large text: AA
Contrast with black, large text4.82:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#23C8E0
Analogous#E0236A, #E09923
Triadic#23E03B, #3B23E0
Split complementary#23E099, #236AE0
Tetradic#6AE023, #23C8E0, #9923E0
Tints, shades & saturation
Channel breakdown
R224
G59
B35
Red224 (87.8%)
Green59 (23.1%)
Blue35 (13.7%)
Hue7.62°
Saturation (HSL)75.3%
Lightness50.78%
Dominant channelRed
Hex per channelR E0 · G 3B · B 23
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