Colour
#21060A
- #21060A
- Red
- Dark
- Nearest: Black
#21060A is a red with RGB values 33, 6, 10 and HSL 351°, 69%, 8%. It is a dark colour, so white text on it reaches 19.2:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#21060A#21060A
HEX#21060A
RGBrgb(33, 6, 10)
RGB (0–1)0.1294, 0.0235, 0.0392
RGB percentages12.9%, 2.4%, 3.9%
HSLhsl(351.1, 69.2%, 7.6%)
HSV / HSBhsv(351.1, 81.8%, 12.9%)
CMYK0%, 81.8%, 69.7%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,164,234
CSS custom property--colour: #21060A;
Brightness & contrast
Relative luminance0.00475WCAG 2.x, 0 is black and 1 is white
Perceived brightness18.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.18:1
Contrast with white19.18:1WCAG normal text: AAA
Contrast with black1.1:1WCAG normal text: Fail
Greyscale equivalent#0C0C0C
Inverted#DEF9F5
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.18:1WCAG large text: AAA
Contrast with black, large text1.1:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#06211D
Analogous#210618, #210F06
Triadic#0A2106, #060A21
Split complementary#06210F, #061821
Tetradic#182106, #06211D, #0F0621
Tints, shades & saturation
Channel breakdown
R33
G6
B10
Red33 (12.9%)
Green6 (2.4%)
Blue10 (3.9%)
Hue351.11°
Saturation (HSL)69.23%
Lightness7.65%
Dominant channelRed
Hex per channelR 21 · G 06 · B 0A
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