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Recognised as Colour

#3EFF21

  • #3EFF21
  • Green
  • Light
  • Nearest: Lime

#3EFF21 is a green with RGB values 62, 255, 33 and HSL 112°, 100%, 56%. It is a light colour, so black text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Lime.

Colour values

#3EFF21#3EFF21
HEX#3EFF21
RGBrgb(62, 255, 33)
RGB (0–1)0.2431, 1, 0.1294
RGB percentages24.3%, 100%, 12.9%
HSLhsl(112.2, 100%, 56.5%)
HSV / HSBhsv(112.2, 87.1%, 100%)
CMYK75.7%, 0%, 87.1%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,128,545
CSS custom property--colour: #3EFF21;

Brightness & contrast

Relative luminance0.72654WCAG 2.x, 0 is black and 1 is white
Perceived brightness198.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.53:1
Contrast with white1.35:1WCAG normal text: Fail
Contrast with black15.53:1WCAG normal text: AAA
Greyscale equivalent#C6C6C6
Inverted#C100DE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE600no red cones; affects about 1% of men; ΔE 72.3 from the original
Deuteranopia#F0D844no green cones; the most common form, about 1% of men; ΔE 74.3 from the original
Tritanopia#00F7D9no blue cones; rare, and affects men and women equally; ΔE 83.6 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 text15.53:1WCAG large text: AAA

Named colours

Lime · ΔE 5.9Lawn green · ΔE 14.1Chartreuse · ΔE 14.3Limegreen · ΔE 28.1Green yellow · ΔE 28.9Spring green · ΔE 33.4
Nearest named CSS colourLime (#00FF00)ΔE 5.95, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E221FF
Analogous#ADFF21, #21FF73
Triadic#213EFF, #FF213E
Split complementary#7321FF, #FF21AD
Tetradic#21ADFF, #E221FF, #FF7321

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFFFED
Lighter +30%#C3FFBA
Lighter +20%#97FF87
Lighter +10%#6AFF54
Darker −10%#1FED00
Darker −20%#18BA00
Darker −30%#128700
Darker −40%#0B5400
More saturated +25%#3EFF21
Less saturated −25%#52E33D

Channel breakdown

R62
G255
B33
Red62 (24.3%)
Green255 (100%)
Blue33 (12.9%)
Hue112.16°
Saturation (HSL)100%
Lightness56.47%
Dominant channelGreen
Hex per channelR 3E · G FF · B 21

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Every value on this page was computed from “3eff21” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.