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Colour

#81D900

  • #81D900
  • Green
  • Light
  • Nearest: Green yellow

#81D900 is a green with RGB values 129, 217, 0 and HSL 84°, 100%, 43%. It is a light colour, so black text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Green yellow.

Colour values

#81D900#81D900
HEX#81D900
RGBrgb(129, 217, 0)
RGB (0–1)0.5059, 0.851, 0
RGB percentages50.6%, 85.1%, 0%
HSLhsl(84.3, 100%, 42.5%)
HSV / HSBhsv(84.3, 100%, 85.1%)
CMYK40.6%, 0%, 100%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,509,696
CSS custom property--colour: #81D900;

Brightness & contrast

Relative luminance0.54293WCAG 2.x, 0 is black and 1 is white
Perceived brightness180.6 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.86:1
Contrast with white1.77:1WCAG normal text: Fail
Contrast with black11.86:1WCAG normal text: AAA
Greyscale equivalent#B7B7B7
Inverted#7E26FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#E2C700no red cones; affects about 1% of men; ΔE 47.4 from the original
Deuteranopia#D7C02Eno green cones; the most common form, about 1% of men; ΔE 47.4 from the original
Tritanopia#82D0B8no blue cones; rare, and affects men and women equally; ΔE 76.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.77:1WCAG large text: Fail
Contrast with black, large text11.86:1WCAG large text: AAA

Named colours

Green yellow · ΔE 14.2Yellow green · ΔE 18.8Lawn green · ΔE 19.4Chartreuse · ΔE 20.4Limegreen · ΔE 21.6Lime · ΔE 34.6
Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 14.21, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5800D9
Analogous#D9C400, #15D900
Triadic#0081D9, #D90081
Split complementary#0014D9, #C500D9
Tetradic#00D9C5, #5800D9, #D90014

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DBFFA6
Lighter +30%#C6FF73
Lighter +20%#B2FF40
Lighter +10%#9DFF0D
Darker −10%#63A600
Darker −20%#447300
Darker −30%#264000
Darker −40%#080D00
More saturated +25%#81D900
Less saturated −25%#7CBE1B

Channel breakdown

R129
G217
B0
Red129 (50.6%)
Green217 (85.1%)
Blue0 (0%)
Hue84.33°
Saturation (HSL)100%
Lightness42.55%
Dominant channelGreen
Hex per channelR 81 · G D9 · B 00

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Every value on this page was computed from “81d900” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.