Colour

#21FF42

#21FF42
Green
Light
Nearest: Lime

#21FF42 is a green with RGB values 33, 255, 66 and HSL 129°, 100%, 56%. It is a light colour, so black text on it reaches 15.4:1 contrast (AAA for normal text). The nearest named colour is Lime.

Colour values

#21FF42#21FF42

HEX#21FF42

RGBrgb(33, 255, 66)

RGB (0–1)0.1294, 1, 0.2588

RGB percentages12.9%, 100%, 25.9%

HSLhsl(128.9, 100%, 56.5%)

HSV / HSBhsv(128.9, 87.1%, 100%)

CMYK87.1%, 0%, 74.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,228,034

CSS custom property--colour: #21FF42;

Brightness & contrast

Relative luminance0.72237WCAG 2.x, 0 is black and 1 is white

Perceived brightness197.5 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 15.45:1

Contrast with white1.36:1WCAG normal text: Fail

Contrast with black15.45:1WCAG normal text: AAA

Greyscale equivalent#C2C2C2

Inverted#DE00BD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFE618no red cones; affects about 1% of men; ΔE 74.9 from the original

Deuteranopia#EED757no green cones; the most common form, about 1% of men; ΔE 76.2 from the original

Tritanopia#00F8DBno blue cones; rare, and affects men and women equally; ΔE 76.4 from the original

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

Contrast with white, large text1.36:1WCAG large text: Fail

Contrast with black, large text15.45:1WCAG large text: AAA

Named colours

Lime · ΔE 12.3 Lawn green · ΔE 19.8 Chartreuse · ΔE 20.3 Limegreen · ΔE 23.9 Spring green · ΔE 25.1 Green yellow · ΔE 31.8

Nearest named CSS colourLime (#00FF00)ΔE 12.31, a distinctly different colour

Hue familygreen

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FF21DE

Analogous#6FFF21, #21FFB1

Triadic#4221FF, #FF4221

Split complementary#B121FF, #FF216F

Tetradic#216FFF, #FF21DE, #FFB121

Tints, shades & saturation

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

Lighter +40%#EDFFF0

Lighter +30%#BAFFC4

Lighter +20%#87FF99

Lighter +10%#54FF6D

Darker −10%#00ED23

Darker −20%#00BA1C

Darker −30%#008714

Darker −40%#00540C

More saturated +25%#21FF42

Less saturated −25%#3DE356

Channel breakdown

R33

G255

B66

Red33 (12.9%)

Green255 (100%)

Blue66 (25.9%)

Hue128.92°

Saturation (HSL)100%

Lightness56.47%

Dominant channelGreen

Hex per channelR 21 · G FF · B 42

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#21FF42

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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