Colour
#210D0F
- #210D0F
- Red
- Dark
- Nearest: Black
#210D0F is a red with RGB values 33, 13, 15 and HSL 354°, 43%, 9%. It is a dark colour, so white text on it reaches 18.6:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#210D0F#210D0F
HEX#210D0F
RGBrgb(33, 13, 15)
RGB (0–1)0.1294, 0.051, 0.0588
RGB percentages12.9%, 5.1%, 5.9%
HSLhsl(354, 43.5%, 9%)
HSV / HSBhsv(354, 60.6%, 12.9%)
CMYK0%, 60.6%, 54.5%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,166,031
CSS custom property--colour: #210D0F;
Brightness & contrast
Relative luminance0.00646WCAG 2.x, 0 is black and 1 is white
Perceived brightness21.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.6:1
Contrast with white18.6:1WCAG normal text: AAA
Contrast with black1.13:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#DEF2F0
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.6:1WCAG large text: AAA
Contrast with black, large text1.13:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0D211F
Analogous#210D19, #21150D
Triadic#0F210D, #0D0F21
Split complementary#0D2115, #0D1921
Tetradic#19210D, #0D211F, #150D21
Tints, shades & saturation
Channel breakdown
R33
G13
B15
Red33 (12.9%)
Green13 (5.1%)
Blue15 (5.9%)
Hue354°
Saturation (HSL)43.48%
Lightness9.02%
Dominant channelRed
Hex per channelR 21 · G 0D · B 0F
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