Colour
#173B2E
- #173B2E
- Cyan
- Dark
- Nearest: Dark slate grey
#173B2E is a cyan with RGB values 23, 59, 46 and HSL 158°, 44%, 16%. It is a dark colour, so white text on it reaches 12.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#173B2E#173B2E
HEX#173B2E
RGBrgb(23, 59, 46)
RGB (0–1)0.0902, 0.2314, 0.1804
RGB percentages9%, 23.1%, 18%
HSLhsl(158.3, 43.9%, 16.1%)
HSV / HSBhsv(158.3, 61%, 23.1%)
CMYK61%, 0%, 22%, 76.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,522,478
CSS custom property--colour: #173B2E;
Brightness & contrast
Relative luminance0.03507WCAG 2.x, 0 is black and 1 is white
Perceived brightness49.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.34:1
Contrast with white12.34:1WCAG normal text: AAA
Contrast with black1.7:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#E8C4D1
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.34:1WCAG large text: AAA
Contrast with black, large text1.7:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3B1724
Analogous#173B1C, #17363B
Triadic#2E173B, #3B2E17
Split complementary#3B1736, #3B1C17
Tetradic#1C173B, #3B1724, #363B17
Tints, shades & saturation
Channel breakdown
R23
G59
B46
Red23 (9%)
Green59 (23.1%)
Blue46 (18%)
Hue158.33°
Saturation (HSL)43.9%
Lightness16.08%
Dominant channelGreen
Hex per channelR 17 · G 3B · B 2E
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