Recognised as Colour
#559FAD
- #559FAD
- Cyan
- Dark
- Nearest: Cadetblue
#559FAD is a cyan with RGB values 85, 159, 173 and HSL 190°, 35%, 51%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Cadetblue.
Colour values
#559FAD#559FAD
HEX#559FAD
RGBrgb(85, 159, 173)
RGB (0–1)0.3333, 0.6235, 0.6784
RGB percentages33.3%, 62.4%, 67.8%
HSLhsl(189.5, 34.9%, 50.6%)
HSV / HSBhsv(189.5, 50.9%, 67.8%)
CMYK50.9%, 8.1%, 0%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,611,437
CSS custom property--colour: #559FAD;
Brightness & contrast
Relative luminance0.29745WCAG 2.x, 0 is black and 1 is white
Perceived brightness142.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.95:1
Contrast with white3.02:1WCAG normal text: Fail
Contrast with black6.95:1WCAG normal text: AA
Greyscale equivalent#909090
Inverted#AA6052
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.02:1WCAG large text: AA
Contrast with black, large text6.95:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#AD6355
Analogous#55AD8F, #5573AD
Triadic#AD559F, #9FAD55
Split complementary#AD5573, #AD8F55
Tetradic#8F55AD, #AD6355, #73AD55
Tints, shades & saturation
Channel breakdown
R85
G159
B173
Red85 (33.3%)
Green159 (62.4%)
Blue173 (67.8%)
Hue189.55°
Saturation (HSL)34.92%
Lightness50.59%
Dominant channelBlue
Hex per channelR 55 · G 9F · B AD
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