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Colour

#66AC23

  • #66AC23
  • Green
  • Dark
  • Nearest: Yellow green

#66AC23 is a green with RGB values 102, 172, 35 and HSL 91°, 66%, 41%. It is a dark colour, so black text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Yellow green.

Colour values

#66AC23#66AC23
HEX#66AC23
RGBrgb(102, 172, 35)
RGB (0–1)0.4, 0.6745, 0.1373
RGB percentages40%, 67.5%, 13.7%
HSLhsl(90.7, 66.2%, 40.6%)
HSV / HSBhsv(90.7, 79.7%, 67.5%)
CMYK40.7%, 0%, 79.7%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,728,739
CSS custom property--colour: #66AC23;

Brightness & contrast

Relative luminance0.32451WCAG 2.x, 0 is black and 1 is white
Perceived brightness143.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.49:1
Contrast with white2.8:1WCAG normal text: Fail
Contrast with black7.49:1WCAG normal text: AAA
Greyscale equivalent#939393
Inverted#9953DC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B39E00no red cones; affects about 1% of men; ΔE 39.3 from the original
Deuteranopia#AA9832no green cones; the most common form, about 1% of men; ΔE 38.8 from the original
Tritanopia#66A593no blue cones; rare, and affects men and women equally; ΔE 58.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.8:1WCAG large text: Fail
Contrast with black, large text7.49:1WCAG large text: AAA

Named colours

Yellow green · ΔE 16.3Forest green · ΔE 19.5Olivedrab · ΔE 19.7Green · ΔE 21Limegreen · ΔE 25.4Light green · ΔE 31.3
Nearest named CSS colourYellow green (#9ACD32)ΔE 16.31, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6923AC
Analogous#ABAC23, #23AC24
Triadic#2366AC, #AC2366
Split complementary#2523AC, #AC23AA
Tetradic#23AAAC, #6923AC, #AC2423

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDEEAD
Lighter +30%#B3E682
Lighter +20%#99DD58
Lighter +10%#7FD42E
Darker −10%#4D821A
Darker −20%#345712
Darker −30%#1B2D09
Darker −40%#010201
More saturated +25%#65C609
Less saturated −25%#67923D

Channel breakdown

R102
G172
B35
Red102 (40%)
Green172 (67.5%)
Blue35 (13.7%)
Hue90.66°
Saturation (HSL)66.18%
Lightness40.59%
Dominant channelGreen
Hex per channelR 66 · G AC · B 23

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Every value on this page was computed from “66ac23” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.