Recognised as Colour
#428FA0
- #428FA0
- Cyan
- Dark
- Nearest: Cadetblue
#428FA0 is a cyan with RGB values 66, 143, 160 and HSL 191°, 42%, 44%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Cadetblue.
Colour values
#428FA0#428FA0
HEX#428FA0
RGBrgb(66, 143, 160)
RGB (0–1)0.2588, 0.5608, 0.6275
RGB percentages25.9%, 56.1%, 62.7%
HSLhsl(190.9, 41.6%, 44.3%)
HSV / HSBhsv(190.9, 58.7%, 62.7%)
CMYK58.8%, 10.6%, 0%, 37.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,362,144
CSS custom property--colour: #428FA0;
Brightness & contrast
Relative luminance0.23341WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.67:1
Contrast with white3.7:1WCAG normal text: Fail
Contrast with black5.67:1WCAG normal text: AA
Greyscale equivalent#808080
Inverted#BD705F
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.7:1WCAG large text: AA
Contrast with black, large text5.67:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A05342
Analogous#42A082, #4260A0
Triadic#A0428F, #8FA042
Split complementary#A04260, #A08242
Tetradic#8242A0, #A05342, #60A042
Tints, shades & saturation
Channel breakdown
R66
G143
B160
Red66 (25.9%)
Green143 (56.1%)
Blue160 (62.7%)
Hue190.85°
Saturation (HSL)41.59%
Lightness44.31%
Dominant channelBlue
Hex per channelR 42 · G 8F · B A0
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