Colour
#173A2E
- #173A2E
- Cyan
- Dark
- Nearest: Dark slate grey
#173A2E is a cyan with RGB values 23, 58, 46 and HSL 159°, 43%, 16%. It is a dark colour, so white text on it reaches 12.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#173A2E#173A2E
HEX#173A2E
RGBrgb(23, 58, 46)
RGB (0–1)0.0902, 0.2275, 0.1804
RGB percentages9%, 22.7%, 18%
HSLhsl(159.4, 43.2%, 15.9%)
HSV / HSBhsv(159.4, 60.3%, 22.7%)
CMYK60.3%, 0%, 20.7%, 77.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,522,222
CSS custom property--colour: #173A2E;
Brightness & contrast
Relative luminance0.03406WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.49:1
Contrast with white12.49:1WCAG normal text: AAA
Contrast with black1.68:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#E8C5D1
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.49:1WCAG large text: AAA
Contrast with black, large text1.68:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3A1723
Analogous#173A1D, #17343A
Triadic#2E173A, #3A2E17
Split complementary#3A1734, #3A1D17
Tetradic#1D173A, #3A1723, #343A17
Tints, shades & saturation
Channel breakdown
R23
G58
B46
Red23 (9%)
Green58 (22.7%)
Blue46 (18%)
Hue159.43°
Saturation (HSL)43.21%
Lightness15.88%
Dominant channelGreen
Hex per channelR 17 · G 3A · B 2E
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