Colour
#00423E
- #00423E
- Cyan
- Dark
- Nearest: Dark slate grey
#00423E is a cyan with RGB values 0, 66, 62 and HSL 176°, 100%, 13%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#00423E#00423E
HEX#00423E
RGBrgb(0, 66, 62)
RGB (0–1)0, 0.2588, 0.2431
RGB percentages0%, 25.9%, 24.3%
HSLhsl(176.4, 100%, 12.9%)
HSV / HSBhsv(176.4, 100%, 25.9%)
CMYK100%, 0%, 6.1%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,958
CSS custom property--colour: #00423E;
Brightness & contrast
Relative luminance0.04244WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.36:1
Contrast with white11.36:1WCAG normal text: AAA
Contrast with black1.85:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#FFBDC1
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.36:1WCAG large text: AAA
Contrast with black, large text1.85:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#420004
Analogous#00421D, #002542
Triadic#3E0042, #423E00
Split complementary#420025, #421D00
Tetradic#1D0042, #420004, #254200
Tints, shades & saturation
Channel breakdown
R0
G66
B62
Red0 (0%)
Green66 (25.9%)
Blue62 (24.3%)
Hue176.36°
Saturation (HSL)100%
Lightness12.94%
Dominant channelGreen
Hex per channelR 00 · G 42 · B 3E
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