Recognised as Colour
#E3173F
- #E3173F
- Red
- Dark
- Nearest: Crimson
#E3173F is a red with RGB values 227, 23, 63 and HSL 348°, 82%, 49%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#E3173F#E3173F
HEX#E3173F
RGBrgb(227, 23, 63)
RGB (0–1)0.8902, 0.0902, 0.2471
RGB percentages89%, 9%, 24.7%
HSLhsl(348.2, 81.6%, 49%)
HSV / HSBhsv(348.2, 89.9%, 89%)
CMYK0%, 89.9%, 72.2%, 11%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,882,623
CSS custom property--colour: #E3173F;
Brightness & contrast
Relative luminance0.17303WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.71:1
Contrast with white4.71:1WCAG normal text: AA
Contrast with black4.46:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#1CE8C0
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.71:1WCAG large text: AAA
Contrast with black, large text4.46:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#17E3BB
Analogous#E317A5, #E35517
Triadic#3FE317, #173FE3
Split complementary#17E355, #17A5E3
Tetradic#A5E317, #17E3BB, #5517E3
Tints, shades & saturation
Channel breakdown
R227
G23
B63
Red227 (89%)
Green23 (9%)
Blue63 (24.7%)
Hue348.24°
Saturation (HSL)81.6%
Lightness49.02%
Dominant channelRed
Hex per channelR E3 · G 17 · B 3F
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