Recognised as Colour
#0491AA
- #0491AA
- Cyan
- Dark
- Nearest: Dark cyan
#0491AA is a cyan with RGB values 4, 145, 170 and HSL 189°, 95%, 34%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Dark cyan.
Colour values
#0491AA#0491AA
HEX#0491AA
RGBrgb(4, 145, 170)
RGB (0–1)0.0157, 0.5686, 0.6667
RGB percentages1.6%, 56.9%, 66.7%
HSLhsl(189, 95.4%, 34.1%)
HSV / HSBhsv(189, 97.6%, 66.7%)
CMYK97.6%, 14.7%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer299,434
CSS custom property--colour: #0491AA;
Brightness & contrast
Relative luminance0.23179WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.64:1
Contrast with white3.73:1WCAG normal text: Fail
Contrast with black5.64:1WCAG normal text: AA
Greyscale equivalent#757575
Inverted#FB6E55
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.73:1WCAG large text: AA
Contrast with black, large text5.64:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#AA1D04
Analogous#04AA70, #043EAA
Triadic#AA0491, #91AA04
Split complementary#AA043E, #AA7004
Tetradic#7004AA, #AA1D04, #3EAA04
Tints, shades & saturation
Channel breakdown
R4
G145
B170
Red4 (1.6%)
Green145 (56.9%)
Blue170 (66.7%)
Hue189.04°
Saturation (HSL)95.4%
Lightness34.12%
Dominant channelBlue
Hex per channelR 04 · G 91 · B AA
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