Recognised as Colour
#28FFDB
- #28FFDB
- Cyan
- Light
- Nearest: Aquamarine
#28FFDB is a cyan with RGB values 40, 255, 219 and HSL 170°, 100%, 58%. It is a light colour, so black text on it reaches 16.4:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.
Colour values
#28FFDB#28FFDB
HEX#28FFDB
RGBrgb(40, 255, 219)
RGB (0–1)0.1569, 1, 0.8588
RGB percentages15.7%, 100%, 85.9%
HSLhsl(170, 100%, 57.8%)
HSV / HSBhsv(170, 84.3%, 100%)
CMYK84.3%, 0%, 14.1%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,686,939
CSS custom property--colour: #28FFDB;
Brightness & contrast
Relative luminance0.77086WCAG 2.x, 0 is black and 1 is white
Perceived brightness210 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.42:1
Contrast with white1.28:1WCAG normal text: Fail
Contrast with black16.42:1WCAG normal text: AAA
Greyscale equivalent#CFCFCF
Inverted#D70024
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.28:1WCAG large text: Fail
Contrast with black, large text16.42:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#FF284C
Analogous#28FF70, #28B7FF
Triadic#DB28FF, #FFDB28
Split complementary#FF28B7, #FF7028
Tetradic#7028FF, #FF284C, #B7FF28
Tints, shades & saturation
Channel breakdown
R40
G255
B219
Red40 (15.7%)
Green255 (100%)
Blue219 (85.9%)
Hue169.95°
Saturation (HSL)100%
Lightness57.84%
Dominant channelGreen
Hex per channelR 28 · G FF · B DB
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