Colour
#42858F
- #42858F
- Cyan
- Dark
- Nearest: Cadetblue
#42858F is a cyan with RGB values 66, 133, 143 and HSL 188°, 37%, 41%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Cadetblue.
Colour values
#42858F#42858F
HEX#42858F
RGBrgb(66, 133, 143)
RGB (0–1)0.2588, 0.5216, 0.5608
RGB percentages25.9%, 52.2%, 56.1%
HSLhsl(187.8, 36.8%, 41%)
HSV / HSBhsv(187.8, 53.8%, 56.1%)
CMYK53.8%, 7%, 0%, 43.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,359,567
CSS custom property--colour: #42858F;
Brightness & contrast
Relative luminance0.19916WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.98:1
Contrast with white4.21:1WCAG normal text: Fail
Contrast with black4.98:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#BD7A70
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.21:1WCAG large text: AA
Contrast with black, large text4.98:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#8F4C42
Analogous#428F73, #425E8F
Triadic#8F4285, #858F42
Split complementary#8F425E, #8F7342
Tetradic#73428F, #8F4C42, #5E8F42
Tints, shades & saturation
Channel breakdown
R66
G133
B143
Red66 (25.9%)
Green133 (52.2%)
Blue143 (56.1%)
Hue187.79°
Saturation (HSL)36.84%
Lightness40.98%
Dominant channelBlue
Hex per channelR 42 · G 85 · B 8F
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