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Recognised as Colour

#81FC00

  • #81FC00
  • Green
  • Light
  • Nearest: Lawn green

#81FC00 is a green with RGB values 129, 252, 0 and HSL 89°, 100%, 49%. It is a light colour, so black text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Lawn green.

Colour values

#81FC00#81FC00
HEX#81FC00
RGBrgb(129, 252, 0)
RGB (0–1)0.5059, 0.9882, 0
RGB percentages50.6%, 98.8%, 0%
HSLhsl(89.3, 100%, 49.4%)
HSV / HSBhsv(89.3, 100%, 98.8%)
CMYK48.8%, 0%, 100%, 1.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,518,656
CSS custom property--colour: #81FC00;

Brightness & contrast

Relative luminance0.74288WCAG 2.x, 0 is black and 1 is white
Perceived brightness205.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.86:1
Contrast with white1.32:1WCAG normal text: Fail
Contrast with black15.86:1WCAG normal text: AAA
Greyscale equivalent#D0D0D0
Inverted#7E03FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE600no red cones; affects about 1% of men; ΔE 57.2 from the original
Deuteranopia#F6DC38no green cones; the most common form, about 1% of men; ΔE 59.7 from the original
Tritanopia#7CF2D6no blue cones; rare, and affects men and women equally; ΔE 86.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.32:1WCAG large text: Fail
Contrast with black, large text15.86:1WCAG large text: AAA

Named colours

Lawn green · ΔE 1.4Chartreuse · ΔE 1.9Green yellow · ΔE 14.6Lime · ΔE 19.9Limegreen · ΔE 28.9Yellow green · ΔE 36.2
Nearest named CSS colourLawn green (#7CFC00)ΔE 1.44, below the just-noticeable difference
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7B00FC
Analogous#FCF900, #03FC00
Triadic#0081FC, #FC0081
Split complementary#0003FC, #F900FC
Tetradic#00FCF9, #7B00FC, #FC0003

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5FFC9
Lighter +30%#CCFF96
Lighter +20%#B3FF63
Lighter +10%#9AFF30
Darker −10%#67C900
Darker −20%#4D9600
Darker −30%#336300
Darker −40%#193000
More saturated +25%#81FC00
Less saturated −25%#80DD20

Channel breakdown

R129
G252
B0
Red129 (50.6%)
Green252 (98.8%)
Blue0 (0%)
Hue89.29°
Saturation (HSL)100%
Lightness49.41%
Dominant channelGreen
Hex per channelR 81 · G FC · B 00

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Every value on this page was computed from “81fc00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.