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Colour

#51FF40

  • #51FF40
  • Green
  • Light
  • Nearest: Lime

#51FF40 is a green with RGB values 81, 255, 64 and HSL 115°, 100%, 63%. It is a light colour, so black text on it reaches 15.7:1 contrast (AAA for normal text). The nearest named colour is Lime.

Colour values

#51FF40#51FF40
HEX#51FF40
RGBrgb(81, 255, 64)
RGB (0–1)0.3176, 1, 0.251
RGB percentages31.8%, 100%, 25.1%
HSLhsl(114.7, 100%, 62.5%)
HSV / HSBhsv(114.7, 74.9%, 100%)
CMYK68.2%, 0%, 74.9%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,373,760
CSS custom property--colour: #51FF40;

Brightness & contrast

Relative luminance0.73639WCAG 2.x, 0 is black and 1 is white
Perceived brightness201.5 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.73:1
Contrast with white1.34:1WCAG normal text: Fail
Contrast with black15.73:1WCAG normal text: AAA
Greyscale equivalent#CCCCCC
Inverted#AE00BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE711no red cones; affects about 1% of men; ΔE 68.6 from the original
Deuteranopia#F1DA55no green cones; the most common form, about 1% of men; ΔE 70 from the original
Tritanopia#24F7DBno blue cones; rare, and affects men and women equally; ΔE 76.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.34:1WCAG large text: Fail
Contrast with black, large text15.73:1WCAG large text: AAA

Named colours

Lime · ΔE 14Lawn green · ΔE 14.8Chartreuse · ΔE 15.4Limegreen · ΔE 22Green yellow · ΔE 25.9Spring green · ΔE 26
Nearest named CSS colourLime (#00FF00)ΔE 14.02, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EE40FF
Analogous#B0FF40, #40FF8F
Triadic#4051FF, #FF4051
Split complementary#8E40FF, #FF40B1
Tetradic#40B1FF, #EE40FF, #FF8F40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DCFFD9
Lighter +20%#AEFFA6
Lighter +10%#7FFF73
Darker −10%#23FF0D
Darker −20%#13D900
Darker −30%#0FA600
Darker −40%#0A7300
More saturated +25%#51FF40
Less saturated −25%#65E758

Channel breakdown

R81
G255
B64
Red81 (31.8%)
Green255 (100%)
Blue64 (25.1%)
Hue114.66°
Saturation (HSL)100%
Lightness62.55%
Dominant channelGreen
Hex per channelR 51 · G FF · B 40

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Every value on this page was computed from “51ff40” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.