Recognised as Colour
#EF0B02
- #EF0B02
- Red
- Dark
- Nearest: Red
#EF0B02 is a red with RGB values 239, 11, 2 and HSL 2°, 98%, 47%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Red.
Colour values
#EF0B02#EF0B02
HEX#EF0B02
RGBrgb(239, 11, 2)
RGB (0–1)0.9373, 0.0431, 0.0078
RGB percentages93.7%, 4.3%, 0.8%
HSLhsl(2.3, 98.3%, 47.3%)
HSV / HSBhsv(2.3, 99.2%, 93.7%)
CMYK0%, 95.4%, 99.2%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,665,922
CSS custom property--colour: #EF0B02;
Brightness & contrast
Relative luminance0.18594WCAG 2.x, 0 is black and 1 is white
Perceived brightness131 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.72:1
Contrast with white4.45:1WCAG normal text: Fail
Contrast with black4.72:1WCAG normal text: AA
Greyscale equivalent#3B3B3B
Inverted#10F4FD
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.45:1WCAG large text: AA
Contrast with black, large text4.72:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#02E6EF
Analogous#EF026F, #EF8202
Triadic#02EF0B, #0B02EF
Split complementary#02EF81, #0270EF
Tetradic#6FEF02, #02E6EF, #8102EF
Tints, shades & saturation
Channel breakdown
R239
G11
B2
Red239 (93.7%)
Green11 (4.3%)
Blue2 (0.8%)
Hue2.28°
Saturation (HSL)98.34%
Lightness47.25%
Dominant channelRed
Hex per channelR EF · G 0B · B 02
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