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Recognised as Colour

#66BB2A

  • #66BB2A
  • Green
  • Dark
  • Nearest: Yellow green

#66BB2A is a green with RGB values 102, 187, 42 and HSL 95°, 63%, 45%. It is a dark colour, so black text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Yellow green.

Colour values

#66BB2A#66BB2A
HEX#66BB2A
RGBrgb(102, 187, 42)
RGB (0–1)0.4, 0.7333, 0.1647
RGB percentages40%, 73.3%, 16.5%
HSLhsl(95.2, 63.3%, 44.9%)
HSV / HSBhsv(95.2, 77.5%, 73.3%)
CMYK45.5%, 0%, 77.5%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,732,586
CSS custom property--colour: #66BB2A;

Brightness & contrast

Relative luminance0.38533WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.71:1
Contrast with white2.41:1WCAG normal text: Fail
Contrast with black8.71:1WCAG normal text: AAA
Greyscale equivalent#9E9E9E
Inverted#9944D5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C2AB00no red cones; affects about 1% of men; ΔE 45.2 from the original
Deuteranopia#B7A43Ano green cones; the most common form, about 1% of men; ΔE 44.3 from the original
Tritanopia#63B4A0no blue cones; rare, and affects men and women equally; ΔE 61.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.41:1WCAG large text: Fail
Contrast with black, large text8.71:1WCAG large text: AAA

Named colours

Yellow green · ΔE 15.2Limegreen · ΔE 18.4Forest green · ΔE 23.6Green · ΔE 24.7Olivedrab · ΔE 27.4Light green · ΔE 29.8
Nearest named CSS colourYellow green (#9ACD32)ΔE 15.2, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F2ABB
Analogous#AEBB2A, #2ABB37
Triadic#2A66BB, #BB2A66
Split complementary#372ABB, #BB2AAE
Tetradic#2AAEBB, #7F2ABB, #BB372A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D4F1C0
Lighter +30%#B8E896
Lighter +20%#9CDE6D
Lighter +10%#7FD543
Darker −10%#4F9121
Darker −20%#396817
Darker −30%#223E0E
Darker −40%#0B1405
More saturated +25%#61D80D
Less saturated −25%#6B9E47

Channel breakdown

R102
G187
B42
Red102 (40%)
Green187 (73.3%)
Blue42 (16.5%)
Hue95.17°
Saturation (HSL)63.32%
Lightness44.9%
Dominant channelGreen
Hex per channelR 66 · G BB · B 2A

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Every value on this page was computed from “66bb2a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.