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Recognised as Colour

#668A41

  • #668A41
  • Green
  • Dark
  • Nearest: Dark olivegreen

#668A41 is a green with RGB values 102, 138, 65 and HSL 90°, 36%, 40%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#668A41#668A41
HEX#668A41
RGBrgb(102, 138, 65)
RGB (0–1)0.4, 0.5412, 0.2549
RGB percentages40%, 54.1%, 25.5%
HSLhsl(89.6, 36%, 39.8%)
HSV / HSBhsv(89.6, 52.9%, 54.1%)
CMYK26.1%, 0%, 52.9%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,720,065
CSS custom property--colour: #668A41;

Brightness & contrast

Relative luminance0.21383WCAG 2.x, 0 is black and 1 is white
Perceived brightness121.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.28:1
Contrast with white3.98:1WCAG normal text: Fail
Contrast with black5.28:1WCAG normal text: AA
Greyscale equivalent#7D7D7D
Inverted#9975BE

Colour vision & accessibility

Protanopia#90813Ano red cones; affects about 1% of men; ΔE 22.7 from the original
Deuteranopia#8A7F46no green cones; the most common form, about 1% of men; ΔE 21.8 from the original
Tritanopia#688579no blue cones; rare, and affects men and women equally; ΔE 34.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.98:1WCAG large text: AA
Contrast with black, large text5.28:1WCAG large text: AAA

Named colours

Nearest named CSS colourDark olivegreen (#556B2F)ΔE 13.73, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#65418A
Analogous#8A8941, #428A41
Triadic#41668A, #8A4166
Split complementary#41428A, #89418A
Tetradic#418A89, #65418A, #8A4142

Tints, shades & saturation

Lighter +40%#CCDEB9
Lighter +30%#B2CE96
Lighter +20%#99BD74
Lighter +10%#80AD51
Darker −10%#4C6731
Darker −20%#334520
Darker −30%#192210
Darker −40%#000000
More saturated +25%#66A328
Less saturated −25%#66715A

Channel breakdown

R102
G138
B65
Red102 (40%)
Green138 (54.1%)
Blue65 (25.5%)
Hue89.59°
Saturation (HSL)35.96%
Lightness39.8%
Dominant channelGreen
Hex per channelR 66 · G 8A · B 41

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Every value on this page was computed from “668a41” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.