Colour
#00555D
- #00555D
- Cyan
- Dark
- Nearest: Dark slate grey
#00555D is a cyan with RGB values 0, 85, 93 and HSL 185°, 100%, 18%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#00555D#00555D
HEX#00555D
RGBrgb(0, 85, 93)
RGB (0–1)0, 0.3333, 0.3647
RGB percentages0%, 33.3%, 36.5%
HSLhsl(185.2, 100%, 18.2%)
HSV / HSBhsv(185.2, 100%, 36.5%)
CMYK100%, 8.6%, 0%, 63.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer21,853
CSS custom property--colour: #00555D;
Brightness & contrast
Relative luminance0.07287WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.55:1
Contrast with white8.55:1WCAG normal text: AAA
Contrast with black2.46:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#FFAAA2
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.55:1WCAG large text: AAA
Contrast with black, large text2.46:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#5D0800
Analogous#005D36, #00275D
Triadic#5D0055, #555D00
Split complementary#5D0027, #5D3600
Tetradic#36005D, #5D0800, #275D00
Tints, shades & saturation
Channel breakdown
R0
G85
B93
Red0 (0%)
Green85 (33.3%)
Blue93 (36.5%)
Hue185.16°
Saturation (HSL)100%
Lightness18.24%
Dominant channelBlue
Hex per channelR 00 · G 55 · B 5D
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