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Recognised as Colour

#81E518

  • #81E518
  • Green
  • Light
  • Nearest: Green yellow

#81E518 is a green with RGB values 129, 229, 24 and HSL 89°, 81%, 50%. It is a light colour, so black text on it reaches 13.2:1 contrast (AAA for normal text). The nearest named colour is Green yellow.

Colour values

#81E518#81E518
HEX#81E518
RGBrgb(129, 229, 24)
RGB (0–1)0.5059, 0.898, 0.0941
RGB percentages50.6%, 89.8%, 9.4%
HSLhsl(89.3, 81%, 49.6%)
HSV / HSBhsv(89.3, 89.5%, 89.8%)
CMYK43.7%, 0%, 89.5%, 10.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,512,792
CSS custom property--colour: #81E518;

Brightness & contrast

Relative luminance0.60772WCAG 2.x, 0 is black and 1 is white
Perceived brightness189.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.15:1
Contrast with white1.6:1WCAG normal text: Fail
Contrast with black13.15:1WCAG normal text: AAA
Greyscale equivalent#C1C1C1
Inverted#7E1AE7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#EED200no red cones; affects about 1% of men; ΔE 51.5 from the original
Deuteranopia#E1CA38no green cones; the most common form, about 1% of men; ΔE 51.1 from the original
Tritanopia#7FDCC3no blue cones; rare, and affects men and women equally; ΔE 77.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.6:1WCAG large text: Fail
Contrast with black, large text13.15:1WCAG large text: AAA

Named colours

Green yellow · ΔE 11.9Lawn green · ΔE 14.4Chartreuse · ΔE 15.4Limegreen · ΔE 20.8Yellow green · ΔE 23.1Lime · ΔE 29.6
Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 11.9, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7C18E5
Analogous#E5E218, #1BE518
Triadic#1881E5, #E51881
Split complementary#181BE5, #E218E5
Tetradic#18E5E2, #7C18E5, #E5181B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5FACF
Lighter +30%#CCF5A1
Lighter +20%#B3F073
Lighter +10%#9AEB45
Darker −10%#67B713
Darker −20%#4D890E
Darker −30%#335B09
Darker −40%#192C05
More saturated +25%#82FD00
Less saturated −25%#80C538

Channel breakdown

R129
G229
B24
Red129 (50.6%)
Green229 (89.8%)
Blue24 (9.4%)
Hue89.27°
Saturation (HSL)81.03%
Lightness49.61%
Dominant channelGreen
Hex per channelR 81 · G E5 · B 18

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Every value on this page was computed from “81e518” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.