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Colour

#21FF72

  • #21FF72
  • Green
  • Light
  • Nearest: Spring green

#21FF72 is a green with RGB values 33, 255, 114 and HSL 142°, 100%, 56%. It is a light colour, so black text on it reaches 15.6:1 contrast (AAA for normal text). The nearest named colour is Spring green.

Colour values

#21FF72#21FF72
HEX#21FF72
RGBrgb(33, 255, 114)
RGB (0–1)0.1294, 1, 0.4471
RGB percentages12.9%, 100%, 44.7%
HSLhsl(141.9, 100%, 56.5%)
HSV / HSBhsv(141.9, 87.1%, 100%)
CMYK87.1%, 0%, 55.3%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,228,082
CSS custom property--colour: #21FF72;

Brightness & contrast

Relative luminance0.73058WCAG 2.x, 0 is black and 1 is white
Perceived brightness199.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.61:1
Contrast with white1.35:1WCAG normal text: Fail
Contrast with black15.61:1WCAG normal text: AAA
Greyscale equivalent#C6C6C6
Inverted#DE008D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE865no red cones; affects about 1% of men; ΔE 71.2 from the original
Deuteranopia#EBD87Dno green cones; the most common form, about 1% of men; ΔE 72.3 from the original
Tritanopia#00FAE0no blue cones; rare, and affects men and women equally; ΔE 59.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.35:1WCAG large text: Fail
Contrast with black, large text15.61:1WCAG large text: AAA

Named colours

Spring green · ΔE 6Limegreen · ΔE 20.7Medium spring green · ΔE 21.7Lime · ΔE 31.4Pale green · ΔE 32.6Lawn green · ΔE 33.3
Nearest named CSS colourSpring green (#00FF7F)ΔE 6.03, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF21AE
Analogous#3FFF21, #21FFE1
Triadic#7221FF, #FF7221
Split complementary#E121FF, #FF213F
Tetradic#213FFF, #FF21AE, #FFE121

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EDFFF4
Lighter +30%#BAFFD3
Lighter +20%#87FFB3
Lighter +10%#54FF92
Darker −10%#00ED56
Darker −20%#00BA44
Darker −30%#008731
Darker −40%#00541F
More saturated +25%#21FF72
Less saturated −25%#3DE379

Channel breakdown

R33
G255
B114
Red33 (12.9%)
Green255 (100%)
Blue114 (44.7%)
Hue141.89°
Saturation (HSL)100%
Lightness56.47%
Dominant channelGreen
Hex per channelR 21 · G FF · B 72

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Every value on this page was computed from “21ff72” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.