Colour
#F55F1F
- #F55F1F
- Orange
- Dark
- Nearest: Orange red
#F55F1F is a orange with RGB values 245, 95, 31 and HSL 18°, 91%, 54%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Orange red.
Colour values
#F55F1F#F55F1F
HEX#F55F1F
RGBrgb(245, 95, 31)
RGB (0–1)0.9608, 0.3725, 0.1216
RGB percentages96.1%, 37.3%, 12.2%
HSLhsl(17.9, 91.5%, 54.1%)
HSV / HSBhsv(17.9, 87.3%, 96.1%)
CMYK0%, 61.2%, 87.3%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,080,671
CSS custom property--colour: #F55F1F;
Brightness & contrast
Relative luminance0.27696WCAG 2.x, 0 is black and 1 is white
Perceived brightness152.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.54:1
Contrast with white3.21:1WCAG normal text: Fail
Contrast with black6.54:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#0AA0E0
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.21:1WCAG large text: AA
Contrast with black, large text6.54:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1FB5F5
Analogous#F51F4A, #F5CA1F
Triadic#1FF55F, #5F1FF5
Split complementary#1FF5CA, #1F4AF5
Tetradic#4AF51F, #1FB5F5, #CA1FF5
Tints, shades & saturation
Channel breakdown
R245
G95
B31
Red245 (96.1%)
Green95 (37.3%)
Blue31 (12.2%)
Hue17.94°
Saturation (HSL)91.45%
Lightness54.12%
Dominant channelRed
Hex per channelR F5 · G 5F · B 1F
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