Colour
#FF040C
- #FF040C
- Red
- Dark
- Nearest: Red
#FF040C is a red with RGB values 255, 4, 12 and HSL 358°, 100%, 51%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Red.
Colour values
#FF040C#FF040C
HEX#FF040C
RGBrgb(255, 4, 12)
RGB (0–1)1, 0.0157, 0.0471
RGB percentages100%, 1.6%, 4.7%
HSLhsl(358.1, 100%, 50.8%)
HSV / HSBhsv(358.1, 98.4%, 100%)
CMYK0%, 98.4%, 95.3%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,712,716
CSS custom property--colour: #FF040C;
Brightness & contrast
Relative luminance0.21373WCAG 2.x, 0 is black and 1 is white
Perceived brightness139.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.27:1
Contrast with white3.98:1WCAG normal text: Fail
Contrast with black5.27:1WCAG normal text: AA
Greyscale equivalent#3A3A3A
Inverted#00FBF3
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.98:1WCAG large text: AA
Contrast with black, large text5.27:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#04FFF7
Analogous#FF048A, #FF7904
Triadic#0CFF04, #040CFF
Split complementary#04FF79, #048AFF
Tetradic#8AFF04, #04FFF7, #7904FF
Tints, shades & saturation
Channel breakdown
R255
G4
B12
Red255 (100%)
Green4 (1.6%)
Blue12 (4.7%)
Hue358.09°
Saturation (HSL)100%
Lightness50.78%
Dominant channelRed
Hex per channelR FF · G 04 · B 0C
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