Colour
#00403B
- #00403B
- Cyan
- Dark
- Nearest: Dark slate grey
#00403B is a cyan with RGB values 0, 64, 59 and HSL 175°, 100%, 13%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#00403B#00403B
HEX#00403B
RGBrgb(0, 64, 59)
RGB (0–1)0, 0.251, 0.2314
RGB percentages0%, 25.1%, 23.1%
HSLhsl(175.3, 100%, 12.5%)
HSV / HSBhsv(175.3, 100%, 25.1%)
CMYK100%, 0%, 7.8%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,443
CSS custom property--colour: #00403B;
Brightness & contrast
Relative luminance0.03983WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.69:1
Contrast with white11.69:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#FFBFC4
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.69:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#400005
Analogous#00401B, #002540
Triadic#3B0040, #403B00
Split complementary#400025, #401B00
Tetradic#1B0040, #400005, #254000
Tints, shades & saturation
Channel breakdown
R0
G64
B59
Red0 (0%)
Green64 (25.1%)
Blue59 (23.1%)
Hue175.31°
Saturation (HSL)100%
Lightness12.55%
Dominant channelGreen
Hex per channelR 00 · G 40 · B 3B
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