Colour
#170D0D
- #170D0D
- Red
- Dark
- Nearest: Black
#170D0D is a red with RGB values 23, 13, 13 and HSL 0°, 28%, 7%. It is a dark colour, so white text on it reaches 19.1:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#170D0D#170D0D
HEX#170D0D
RGBrgb(23, 13, 13)
RGB (0–1)0.0902, 0.051, 0.051
RGB percentages9%, 5.1%, 5.1%
HSLhsl(0, 27.8%, 7.1%)
HSV / HSBhsv(0, 43.5%, 9%)
CMYK0%, 43.5%, 43.5%, 91%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,510,669
CSS custom property--colour: #170D0D;
Brightness & contrast
Relative luminance0.00499WCAG 2.x, 0 is black and 1 is white
Perceived brightness16.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.09:1
Contrast with white19.09:1WCAG normal text: AAA
Contrast with black1.1:1WCAG normal text: Fail
Greyscale equivalent#0F0F0F
Inverted#E8F2F2
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.09:1WCAG 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#0D1717
Analogous#170D12, #17120D
Triadic#0D170D, #0D0D17
Split complementary#0D1712, #0D1217
Tetradic#12170D, #0D1717, #120D17
Tints, shades & saturation
Channel breakdown
R23
G13
B13
Red23 (9%)
Green13 (5.1%)
Blue13 (5.1%)
Hue0°
Saturation (HSL)27.78%
Lightness7.06%
Dominant channelRed
Hex per channelR 17 · G 0D · B 0D
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