Colour
#10585A
- #10585A
- Cyan
- Dark
- Nearest: Dark slate grey
#10585A is a cyan with RGB values 16, 88, 90 and HSL 182°, 70%, 21%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#10585A#10585A
HEX#10585A
RGBrgb(16, 88, 90)
RGB (0–1)0.0627, 0.3451, 0.3529
RGB percentages6.3%, 34.5%, 35.3%
HSLhsl(181.6, 69.8%, 20.8%)
HSV / HSBhsv(181.6, 82.2%, 35.3%)
CMYK82.2%, 2.2%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,071,194
CSS custom property--colour: #10585A;
Brightness & contrast
Relative luminance0.07828WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.19:1
Contrast with white8.19:1WCAG normal text: AAA
Contrast with black2.57:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#EFA7A5
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.19:1WCAG large text: AAA
Contrast with black, large text2.57:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#5A1210
Analogous#105A37, #10335A
Triadic#5A1058, #585A10
Split complementary#5A1033, #5A3710
Tetradic#37105A, #5A1210, #335A10
Tints, shades & saturation
Channel breakdown
R16
G88
B90
Red16 (6.3%)
Green88 (34.5%)
Blue90 (35.3%)
Hue181.62°
Saturation (HSL)69.81%
Lightness20.78%
Dominant channelBlue
Hex per channelR 10 · G 58 · B 5A
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