Recognised as Colour
#005557
- #005557
- Cyan
- Dark
- Nearest: Dark slate grey
#005557 is a cyan with RGB values 0, 85, 87 and HSL 181°, 100%, 17%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#005557#005557
HEX#005557
RGBrgb(0, 85, 87)
RGB (0–1)0, 0.3333, 0.3412
RGB percentages0%, 33.3%, 34.1%
HSLhsl(181.4, 100%, 17.1%)
HSV / HSBhsv(181.4, 100%, 34.1%)
CMYK100%, 2.3%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer21,847
CSS custom property--colour: #005557;
Brightness & contrast
Relative luminance0.07185WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.62:1
Contrast with white8.62:1WCAG normal text: AAA
Contrast with black2.44:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#FFAAA8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.62:1WCAG large text: AAA
Contrast with black, large text2.44:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#570200
Analogous#00572D, #002A57
Triadic#570055, #555700
Split complementary#57002A, #572D00
Tetradic#2D0057, #570200, #2A5700
Tints, shades & saturation
Channel breakdown
R0
G85
B87
Red0 (0%)
Green85 (33.3%)
Blue87 (34.1%)
Hue181.38°
Saturation (HSL)100%
Lightness17.06%
Dominant channelBlue
Hex per channelR 00 · G 55 · B 57
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