Recognised as Colour
#22100B
- #22100B
- Red
- Dark
- Nearest: Black
#22100B is a red with RGB values 34, 16, 11 and HSL 13°, 51%, 9%. It is a dark colour, so white text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#22100B#22100B
HEX#22100B
RGBrgb(34, 16, 11)
RGB (0–1)0.1333, 0.0627, 0.0431
RGB percentages13.3%, 6.3%, 4.3%
HSLhsl(13, 51.1%, 8.8%)
HSV / HSBhsv(13, 67.6%, 13.3%)
CMYK0%, 52.9%, 67.6%, 86.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,232,331
CSS custom property--colour: #22100B;
Brightness & contrast
Relative luminance0.00735WCAG 2.x, 0 is black and 1 is white
Perceived brightness22.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.31:1
Contrast with white18.31:1WCAG normal text: AAA
Contrast with black1.15:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#DDEFF4
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.31:1WCAG large text: AAA
Contrast with black, large text1.15:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0B1D22
Analogous#220B11, #221B0B
Triadic#0B2210, #100B22
Split complementary#0B221B, #0B1222
Tetradic#12220B, #0B1D22, #1B0B22
Tints, shades & saturation
Channel breakdown
R34
G16
B11
Red34 (13.3%)
Green16 (6.3%)
Blue11 (4.3%)
Hue13.04°
Saturation (HSL)51.11%
Lightness8.82%
Dominant channelRed
Hex per channelR 22 · G 10 · B 0B
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