Colour
#21EED5
- #21EED5
- Cyan
- Light
- Nearest: Turquoise
#21EED5 is a cyan with RGB values 33, 238, 213 and HSL 173°, 86%, 53%. It is a light colour, so black text on it reaches 14.3:1 contrast (AAA for normal text). The nearest named colour is Turquoise.
Colour values
#21EED5#21EED5
HEX#21EED5
RGBrgb(33, 238, 213)
RGB (0–1)0.1294, 0.9333, 0.8353
RGB percentages12.9%, 93.3%, 83.5%
HSLhsl(172.7, 85.8%, 53.1%)
HSV / HSBhsv(172.7, 86.1%, 93.3%)
CMYK86.1%, 0%, 10.5%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,223,829
CSS custom property--colour: #21EED5;
Brightness & contrast
Relative luminance0.66277WCAG 2.x, 0 is black and 1 is white
Perceived brightness196.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 14.26:1
Contrast with white1.47:1WCAG normal text: Fail
Contrast with black14.26:1WCAG normal text: AAA
Greyscale equivalent#C1C1C1
Inverted#DE112A
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.47:1WCAG large text: Fail
Contrast with black, large text14.26:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#EE213A
Analogous#21EE6E, #21A0EE
Triadic#D521EE, #EED521
Split complementary#EE21A0, #EE6F21
Tetradic#6F21EE, #EE213A, #A1EE21
Tints, shades & saturation
Channel breakdown
R33
G238
B213
Red33 (12.9%)
Green238 (93.3%)
Blue213 (83.5%)
Hue172.68°
Saturation (HSL)85.77%
Lightness53.14%
Dominant channelGreen
Hex per channelR 21 · G EE · B D5
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