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Recognised as Colour

#81DD1F

  • #81DD1F
  • Green
  • Light
  • Nearest: Green yellow

#81DD1F is a green with RGB values 129, 221, 31 and HSL 89°, 75%, 49%. It is a light colour, so black text on it reaches 12.3:1 contrast (AAA for normal text). The nearest named colour is Green yellow.

Colour values

#81DD1F#81DD1F
HEX#81DD1F
RGBrgb(129, 221, 31)
RGB (0–1)0.5059, 0.8667, 0.1216
RGB percentages50.6%, 86.7%, 12.2%
HSLhsl(89.1, 75.4%, 49.4%)
HSV / HSBhsv(89.1, 86%, 86.7%)
CMYK41.6%, 0%, 86%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,510,751
CSS custom property--colour: #81DD1F;

Brightness & contrast

Relative luminance0.56479WCAG 2.x, 0 is black and 1 is white
Perceived brightness183.7 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 12.3:1
Contrast with white1.71:1WCAG normal text: Fail
Contrast with black12.3:1WCAG normal text: AAA
Greyscale equivalent#BCBCBC
Inverted#7E22E0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#E6CB00no red cones; affects about 1% of men; ΔE 48.6 from the original
Deuteranopia#DAC33Ano green cones; the most common form, about 1% of men; ΔE 48.5 from the original
Tritanopia#80D4BCno blue cones; rare, and affects men and women equally; ΔE 74 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.71:1WCAG large text: Fail
Contrast with black, large text12.3:1WCAG large text: AAA

Named colours

Green yellow · ΔE 14.5Yellow green · ΔE 18.3Limegreen · ΔE 19.4Lawn green · ΔE 19.5Chartreuse · ΔE 20.6Lime · ΔE 34
Nearest named CSS colourGreen yellow (#ADFF2F)ΔE 14.5, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7B1FDD
Analogous#DDDA1F, #22DD1F
Triadic#1F81DD, #DD1F81
Split complementary#1F22DD, #DA1FDD
Tetradic#1FDDDA, #7B1FDD, #DD1F22

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5F8D0
Lighter +30%#CCF2A3
Lighter +20%#B3EC76
Lighter +10%#9AE649
Darker −10%#67B019
Darker −20%#4D8412
Darker −30%#33570C
Darker −40%#192A06
More saturated +25%#82FC00
Less saturated −25%#80BE3F

Channel breakdown

R129
G221
B31
Red129 (50.6%)
Green221 (86.7%)
Blue31 (12.2%)
Hue89.05°
Saturation (HSL)75.4%
Lightness49.41%
Dominant channelGreen
Hex per channelR 81 · G DD · B 1F

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Every value on this page was computed from “81dd1f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.