Recognised as Colour
#28A4A0
- #28A4A0
- Cyan
- Dark
- Nearest: Light seagreen
#28A4A0 is a cyan with RGB values 40, 164, 160 and HSL 178°, 61%, 40%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Light seagreen.
Colour values
#28A4A0#28A4A0
HEX#28A4A0
RGBrgb(40, 164, 160)
RGB (0–1)0.1569, 0.6431, 0.6275
RGB percentages15.7%, 64.3%, 62.7%
HSLhsl(178.1, 60.8%, 40%)
HSV / HSBhsv(178.1, 75.6%, 64.3%)
CMYK75.6%, 0%, 2.4%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,663,584
CSS custom property--colour: #28A4A0;
Brightness & contrast
Relative luminance0.2954WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.91:1
Contrast with white3.04:1WCAG normal text: Fail
Contrast with black6.91:1WCAG normal text: AA
Greyscale equivalent#898989
Inverted#D75B5F
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.04:1WCAG large text: AA
Contrast with black, large text6.91:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A4282C
Analogous#28A462, #286AA4
Triadic#A028A4, #A4A028
Split complementary#A4286A, #A46228
Tetradic#6228A4, #A4282C, #6AA428
Tints, shades & saturation
Channel breakdown
R40
G164
B160
Red40 (15.7%)
Green164 (64.3%)
Blue160 (62.7%)
Hue178.06°
Saturation (HSL)60.78%
Lightness40%
Dominant channelGreen
Hex per channelR 28 · G A4 · B A0
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