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Colour

#66FF33

  • #66FF33
  • Green
  • Light
  • Nearest: Lawn green

#66FF33 is a green with RGB values 102, 255, 51 and HSL 105°, 100%, 60%. It is a light colour, so black text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Lawn green.

Colour values

#66FF33#66FF33
HEX#66FF33
HEX (short)#6F3
RGBrgb(102, 255, 51)
RGB (0–1)0.4, 1, 0.2
RGB percentages40%, 100%, 20%
HSLhsl(105, 100%, 60%)
HSV / HSBhsv(105, 80%, 100%)
CMYK60%, 0%, 80%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,750,003
CSS custom property--colour: #66FF33;

Brightness & contrast

Relative luminance0.74584WCAG 2.x, 0 is black and 1 is white
Perceived brightness203.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.92:1
Contrast with white1.32:1WCAG normal text: Fail
Contrast with black15.92:1WCAG normal text: AAA
Greyscale equivalent#D0D0D0
Inverted#9900CC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#FFE800no red cones; affects about 1% of men; ΔE 64 from the original
Deuteranopia#F4DB4Dno green cones; the most common form, about 1% of men; ΔE 66.9 from the original
Tritanopia#52F6DAno blue cones; rare, and affects men and women equally; ΔE 80.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.32:1WCAG large text: Fail
Contrast with black, large text15.92:1WCAG large text: AAA

Named colours

Lawn green · ΔE 9.2Chartreuse · ΔE 9.8Lime · ΔE 14.4Green yellow · ΔE 21.3Limegreen · ΔE 23.7Spring green · ΔE 30.6
Nearest named CSS colourLawn green (#7CFC00)ΔE 9.24, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CC33FF
Analogous#CCFF33, #33FF66
Triadic#3366FF, #FF3366
Split complementary#6633FF, #FF33CC
Tetradic#33CCFF, #CC33FF, #FF6633

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D9FFCC
Lighter +20%#B3FF99
Lighter +10%#8CFF66
Darker −10%#40FF00
Darker −20%#33CC00
Darker −30%#269900
Darker −40%#1A6600
More saturated +25%#66FF33
Less saturated −25%#73E64C

Channel breakdown

R102
G255
B51
Red102 (40%)
Green255 (100%)
Blue51 (20%)
Hue105°
Saturation (HSL)100%
Lightness60%
Dominant channelGreen
Hex per channelR 66 · G FF · B 33

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Every value on this page was computed from “66ff33” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.