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Colour

#51DD00

  • #51DD00
  • Green
  • Light
  • Nearest: Lawn green

#51DD00 is a green with RGB values 81, 221, 0 and HSL 98°, 100%, 43%. It is a light colour, so black text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Lawn green.

Colour values

#51DD00#51DD00
HEX#51DD00
RGBrgb(81, 221, 0)
RGB (0–1)0.3176, 0.8667, 0
RGB percentages31.8%, 86.7%, 0%
HSLhsl(98, 100%, 43.3%)
HSV / HSBhsv(98, 100%, 86.7%)
CMYK63.3%, 0%, 100%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,364,992
CSS custom property--colour: #51DD00;

Brightness & contrast

Relative luminance0.53462WCAG 2.x, 0 is black and 1 is white
Perceived brightness175 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.69:1
Contrast with white1.8:1WCAG normal text: Fail
Contrast with black11.69:1WCAG normal text: AAA
Greyscale equivalent#AFAFAF
Inverted#AE22FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#E4C800no red cones; affects about 1% of men; ΔE 62.7 from the original
Deuteranopia#D3BD30no green cones; the most common form, about 1% of men; ΔE 62 from the original
Tritanopia#3ED5BCno blue cones; rare, and affects men and women equally; ΔE 78.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.8:1WCAG large text: Fail
Contrast with black, large text11.69:1WCAG large text: AAA

Named colours

Lawn green · ΔE 14Chartreuse · ΔE 15.3Limegreen · ΔE 15.5Lime · ΔE 21.6Green yellow · ΔE 21.8Yellow green · ΔE 31.7
Nearest named CSS colourLawn green (#7CFC00)ΔE 14.03, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8C00DD
Analogous#C0DD00, #00DD1D
Triadic#0051DD, #DD0051
Split complementary#1D00DD, #DD00C0
Tetradic#00C0DD, #8C00DD, #DD1D00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C9FFAA
Lighter +30%#A9FF77
Lighter +20%#89FF44
Lighter +10%#68FF11
Darker −10%#3EAA00
Darker −20%#2C7700
Darker −30%#194400
Darker −40%#061100
More saturated +25%#51DD00
Less saturated −25%#58C11C

Channel breakdown

R81
G221
B0
Red81 (31.8%)
Green221 (86.7%)
Blue0 (0%)
Hue98.01°
Saturation (HSL)100%
Lightness43.33%
Dominant channelGreen
Hex per channelR 51 · G DD · B 00

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Every value on this page was computed from “51dd00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.