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Colour

#21DF40

  • #21DF40
  • Green
  • Light
  • Nearest: Limegreen

#21DF40 is a green with RGB values 33, 223, 64 and HSL 130°, 75%, 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 Limegreen.

Colour values

#21DF40#21DF40
HEX#21DF40
RGBrgb(33, 223, 64)
RGB (0–1)0.1294, 0.8745, 0.251
RGB percentages12.9%, 87.5%, 25.1%
HSLhsl(129.8, 74.8%, 50.2%)
HSV / HSBhsv(129.8, 85.2%, 87.5%)
CMYK85.2%, 0%, 71.3%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,219,840
CSS custom property--colour: #21DF40;

Brightness & contrast

Relative luminance0.53469WCAG 2.x, 0 is black and 1 is white
Perceived brightness173.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.69:1
Contrast with white1.8:1WCAG normal text: Fail
Contrast with black11.69:1WCAG normal text: AAA
Greyscale equivalent#ABABAB
Inverted#DE20BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#E3C925no red cones; affects about 1% of men; ΔE 68.6 from the original
Deuteranopia#D0BC50no green cones; the most common form, about 1% of men; ΔE 67.9 from the original
Tritanopia#00D9C0no blue cones; rare, and affects men and women equally; ΔE 66.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.8:1WCAG large text: Fail
Contrast with black, large text11.69:1WCAG large text: AAA

Named colours

Limegreen · ΔE 8.4Spring green · ΔE 18.6Lawn green · ΔE 25.8Lime · ΔE 26.5Chartreuse · ΔE 26.9Medium spring green · ΔE 31.2
Nearest named CSS colourLimegreen (#32CD32)ΔE 8.37, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DF21C0
Analogous#61DF21, #21DF9F
Triadic#4021DF, #DF4021
Split complementary#9F21DF, #DF2161
Tetradic#2161DF, #DF21C0, #DF9F21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D3F9D9
Lighter +30%#A7F2B3
Lighter +20%#7AEC8D
Lighter +10%#4EE566
Darker −10%#1AB333
Darker −20%#138726
Darker −30%#0D5A1A
Darker −40%#072D0D
More saturated +25%#01FF2B
Less saturated −25%#41BF55

Channel breakdown

R33
G223
B64
Red33 (12.9%)
Green223 (87.5%)
Blue64 (25.1%)
Hue129.79°
Saturation (HSL)74.8%
Lightness50.2%
Dominant channelGreen
Hex per channelR 21 · G DF · B 40

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Every value on this page was computed from “21df40” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.