Colour
#559BAA
- #559BAA
- Cyan
- Dark
- Nearest: Cadetblue
#559BAA is a cyan with RGB values 85, 155, 170 and HSL 191°, 33%, 50%. It is a dark colour, so black text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Cadetblue.
Colour values
#559BAA#559BAA
HEX#559BAA
RGBrgb(85, 155, 170)
RGB (0–1)0.3333, 0.6078, 0.6667
RGB percentages33.3%, 60.8%, 66.7%
HSLhsl(190.6, 33.3%, 50%)
HSV / HSBhsv(190.6, 50%, 66.7%)
CMYK50%, 8.8%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,610,410
CSS custom property--colour: #559BAA;
Brightness & contrast
Relative luminance0.28276WCAG 2.x, 0 is black and 1 is white
Perceived brightness139.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.66:1
Contrast with white3.16:1WCAG normal text: Fail
Contrast with black6.66:1WCAG normal text: AA
Greyscale equivalent#8D8D8D
Inverted#AA6455
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.16:1WCAG large text: AA
Contrast with black, large text6.66:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#AA6455
Analogous#55AA8F, #5570AA
Triadic#AA559B, #9BAA55
Split complementary#AA5570, #AA8F55
Tetradic#8F55AA, #AA6455, #70AA55
Tints, shades & saturation
Channel breakdown
R85
G155
B170
Red85 (33.3%)
Green155 (60.8%)
Blue170 (66.7%)
Hue190.59°
Saturation (HSL)33.33%
Lightness50%
Dominant channelBlue
Hex per channelR 55 · G 9B · B AA
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