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Recognised as Colour

#66FF56

  • #66FF56
  • Green
  • Light
  • Nearest: Limegreen

#66FF56 is a green with RGB values 102, 255, 86 and HSL 114°, 100%, 67%. It is a light colour, so black text on it reaches 16:1 contrast (AAA for normal text). The nearest named colour is Limegreen.

Colour values

#66FF56#66FF56
HEX#66FF56
RGBrgb(102, 255, 86)
RGB (0–1)0.4, 1, 0.3373
RGB percentages40%, 100%, 33.7%
HSLhsl(114.3, 100%, 66.9%)
HSV / HSBhsv(114.3, 66.3%, 100%)
CMYK60%, 0%, 66.3%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,750,038
CSS custom property--colour: #66FF56;

Brightness & contrast

Relative luminance0.75017WCAG 2.x, 0 is black and 1 is white
Perceived brightness205.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16:1
Contrast with white1.31:1WCAG normal text: Fail
Contrast with black16:1WCAG normal text: AAA
Greyscale equivalent#D2D2D2
Inverted#9900A9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE83Fno red cones; affects about 1% of men; ΔE 62.9 from the original
Deuteranopia#F2DC66no green cones; the most common form, about 1% of men; ΔE 64.6 from the original
Tritanopia#4DF7DDno blue cones; rare, and affects men and women equally; ΔE 69.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.31:1WCAG large text: Fail
Contrast with black, large text16:1WCAG large text: AAA

Named colours

Limegreen · ΔE 17.8Lawn green · ΔE 19Chartreuse · ΔE 19.8Spring green · ΔE 20.1Lime · ΔE 23.1Green yellow · ΔE 24.2
Nearest named CSS colourLimegreen (#32CD32)ΔE 17.8, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EF56FF
Analogous#BBFF56, #56FF9B
Triadic#5666FF, #FF5666
Split complementary#9A56FF, #FF56BB
Tetradic#56BBFF, #EF56FF, #FF9A56

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F1FFEF
Lighter +20%#C2FFBC
Lighter +10%#94FF89
Darker −10%#38FF23
Darker −20%#17EF00
Darker −30%#12BC00
Darker −40%#0D8900
More saturated +25%#66FF56
Less saturated −25%#77EA6B

Channel breakdown

R102
G255
B86
Red102 (40%)
Green255 (100%)
Blue86 (33.7%)
Hue114.32°
Saturation (HSL)100%
Lightness66.86%
Dominant channelGreen
Hex per channelR 66 · G FF · B 56

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Every value on this page was computed from “66ff56” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.