Colour

#21DD82

#21DD82
Cyan
Light
Nearest: Medium spring green

#21DD82 is a cyan with RGB values 33, 221, 130 and HSL 151°, 74%, 50%. It is a light colour, so black text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Medium spring green.

Colour values

#21DD82#21DD82

HEX#21DD82

RGBrgb(33, 221, 130)

RGB (0–1)0.1294, 0.8667, 0.5098

RGB percentages12.9%, 86.7%, 51%

HSLhsl(151, 74%, 49.8%)

HSV / HSBhsv(151, 85.1%, 86.7%)

CMYK85.1%, 0%, 41.2%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,219,394

CSS custom property--colour: #21DD82;

Brightness & contrast

Relative luminance0.53648WCAG 2.x, 0 is black and 1 is white

Perceived brightness175.8 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 11.73:1

Contrast with white1.79:1WCAG normal text: Fail

Contrast with black11.73:1WCAG normal text: AAA

Greyscale equivalent#AEAEAE

Inverted#DE227D

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#DCCA7Cno red cones; affects about 1% of men; ΔE 60.3 from the original

Deuteranopia#C8BC88no green cones; the most common form, about 1% of men; ΔE 60.5 from the original

Tritanopia#00DBC6no blue cones; rare, and affects men and women equally; ΔE 38 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text1.79:1WCAG large text: Fail

Contrast with black, large text11.73:1WCAG large text: AAA

Named colours

Medium spring green · ΔE 11.3 Light green · ΔE 19.9 Pale green · ΔE 20.9 Spring green · ΔE 22 Medium seagreen · ΔE 22 Limegreen · ΔE 29.6

Nearest named CSS colourMedium spring green (#00FA9A)ΔE 11.33, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#DD217C

Analogous#21DD24, #21DADD

Triadic#8221DD, #DD8221

Split complementary#DD21DA, #DD2421

Tetradic#2421DD, #DD217C, #DADD21

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#D2F8E6

Lighter +30%#A5F2CD

Lighter +20%#79EBB4

Lighter +10%#4DE49B

Darker −10%#1AB168

Darker −20%#14844E

Darker −30%#0D5834

Darker −40%#062C1A

More saturated +25%#01FD83

Less saturated −25%#41BD81

Channel breakdown

R33

G221

B130

Red33 (12.9%)

Green221 (86.7%)

Blue130 (51%)

Hue150.96°

Saturation (HSL)74.02%

Lightness49.8%

Dominant channelGreen

Hex per channelR 21 · G DD · B 82

Keep nerding

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#21DD82

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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