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Colour

#66B41A

  • #66B41A
  • Green
  • Dark
  • Nearest: Yellow green

#66B41A is a green with RGB values 102, 180, 26 and HSL 90°, 75%, 40%. It is a dark colour, so black text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Yellow green.

Colour values

#66B41A#66B41A
HEX#66B41A
RGBrgb(102, 180, 26)
RGB (0–1)0.4, 0.7059, 0.102
RGB percentages40%, 70.6%, 10.2%
HSLhsl(90.4, 74.8%, 40.4%)
HSV / HSBhsv(90.4, 85.6%, 70.6%)
CMYK43.3%, 0%, 85.6%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,730,778
CSS custom property--colour: #66B41A;

Brightness & contrast

Relative luminance0.35542WCAG 2.x, 0 is black and 1 is white
Perceived brightness149 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.11:1
Contrast with white2.59:1WCAG normal text: Fail
Contrast with black8.11:1WCAG normal text: AAA
Greyscale equivalent#989898
Inverted#994BE5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#BBA500no red cones; affects about 1% of men; ΔE 42.2 from the original
Deuteranopia#B19F2Fno green cones; the most common form, about 1% of men; ΔE 41.8 from the original
Tritanopia#65AD99no blue cones; rare, and affects men and women equally; ΔE 62.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.59:1WCAG large text: Fail
Contrast with black, large text8.11:1WCAG large text: AAA

Named colours

Yellow green · ΔE 14.4Limegreen · ΔE 20.9Forest green · ΔE 23.8Green · ΔE 24.2Olivedrab · ΔE 25.8Green yellow · ΔE 32.5
Nearest named CSS colourYellow green (#9ACD32)ΔE 14.4, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#681AB4
Analogous#B3B41A, #1AB41B
Triadic#1A66B4, #B41A66
Split complementary#1B1AB4, #B41AB3
Tetradic#1AB3B4, #681AB4, #B41B1A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDF2A8
Lighter +30%#B3EC7B
Lighter +20%#99E64E
Lighter +10%#7FDF22
Darker −10%#4D8714
Darker −20%#335B0D
Darker −30%#1A2E07
Darker −40%#010200
More saturated +25%#66CE00
Less saturated −25%#669A34

Channel breakdown

R102
G180
B26
Red102 (40%)
Green180 (70.6%)
Blue26 (10.2%)
Hue90.39°
Saturation (HSL)74.76%
Lightness40.39%
Dominant channelGreen
Hex per channelR 66 · G B4 · B 1A

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Every value on this page was computed from “66b41a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.