Colour
#17423C
- #17423C
- Cyan
- Dark
- Nearest: Dark slate grey
#17423C is a cyan with RGB values 23, 66, 60 and HSL 172°, 48%, 17%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#17423C#17423C
HEX#17423C
RGBrgb(23, 66, 60)
RGB (0–1)0.0902, 0.2588, 0.2353
RGB percentages9%, 25.9%, 23.5%
HSLhsl(171.6, 48.3%, 17.5%)
HSV / HSBhsv(171.6, 65.2%, 25.9%)
CMYK65.2%, 0%, 9.1%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,524,284
CSS custom property--colour: #17423C;
Brightness & contrast
Relative luminance0.04405WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.16:1
Contrast with white11.16:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#E8BDC3
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.16:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#42171D
Analogous#174226, #173342
Triadic#3C1742, #423C17
Split complementary#421733, #422617
Tetradic#261742, #42171D, #334217
Tints, shades & saturation
Channel breakdown
R23
G66
B60
Red23 (9%)
Green66 (25.9%)
Blue60 (23.5%)
Hue171.63°
Saturation (HSL)48.31%
Lightness17.45%
Dominant channelGreen
Hex per channelR 17 · G 42 · B 3C
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