Recognised as Colour
#428C68
- #428C68
- Cyan
- Dark
- Nearest: Sea green
#428C68 is a cyan with RGB values 66, 140, 104 and HSL 151°, 36%, 40%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Sea green.
Colour values
#428C68#428C68
HEX#428C68
RGBrgb(66, 140, 104)
RGB (0–1)0.2588, 0.549, 0.4078
RGB percentages25.9%, 54.9%, 40.8%
HSLhsl(150.8, 35.9%, 40.4%)
HSV / HSBhsv(150.8, 52.9%, 54.9%)
CMYK52.9%, 0%, 25.7%, 45.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,361,320
CSS custom property--colour: #428C68;
Brightness & contrast
Relative luminance0.20914WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.18:1
Contrast with white4.05:1WCAG normal text: Fail
Contrast with black5.18:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#BD7397
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.05:1WCAG large text: AA
Contrast with black, large text5.18:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#8C4266
Analogous#428C43, #428B8C
Triadic#68428C, #8C6842
Split complementary#8C428B, #8C4342
Tetradic#43428C, #8C4266, #8B8C42
Tints, shades & saturation
Channel breakdown
R66
G140
B104
Red66 (25.9%)
Green140 (54.9%)
Blue104 (40.8%)
Hue150.81°
Saturation (HSL)35.92%
Lightness40.39%
Dominant channelGreen
Hex per channelR 42 · G 8C · B 68
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