Colour

#668C40

#668C40
Green
Dark
Nearest: Olivedrab

#668C40 is a green with RGB values 102, 140, 64 and HSL 90°, 37%, 40%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Olivedrab.

Colour values

#668C40#668C40

HEX#668C40

RGBrgb(102, 140, 64)

RGB (0–1)0.4, 0.549, 0.251

RGB percentages40%, 54.9%, 25.1%

HSLhsl(90, 37.3%, 40%)

HSV / HSBhsv(90, 54.3%, 54.9%)

CMYK27.1%, 0%, 54.3%, 45.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,720,576

CSS custom property--colour: #668C40;

Brightness & contrast

Relative luminance0.21951WCAG 2.x, 0 is black and 1 is white

Perceived brightness122.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.39:1

Contrast with white3.9:1WCAG normal text: Fail

Contrast with black5.39:1WCAG normal text: AA

Greyscale equivalent#7E7E7E

Inverted#9973BF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#928339no red cones; affects about 1% of men; ΔE 23.5 from the original

Deuteranopia#8C8045no green cones; the most common form, about 1% of men; ΔE 23.1 from the original

Tritanopia#68877Bno blue cones; rare, and affects men and women equally; ΔE 35.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.9:1WCAG large text: AA

Contrast with black, large text5.39:1WCAG large text: AAA

Named colours

Olivedrab · ΔE 13.8 Dark olivegreen · ΔE 15.2 Sea green · ΔE 20.7 Forest green · ΔE 24.7 Olive · ΔE 25 Dark green · ΔE 25

Nearest named CSS colourOlivedrab (#6B8E23)ΔE 13.78, a distinctly different colour

Hue familygreen

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#66408C

Analogous#8C8C40, #408C40

Triadic#40668C, #8C4066

Split complementary#40408C, #8C408C

Tetradic#408C8C, #66408C, #8C4040

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#CCDFB9

Lighter +30%#B3CF96

Lighter +20%#99BF73

Lighter +10%#80AF50

Darker −10%#4D6930

Darker −20%#334620

Darker −30%#1A2310

Darker −40%#000000

More saturated +25%#66A626

Less saturated −25%#66735A

Channel breakdown

R102

G140

B64

Red102 (40%)

Green140 (54.9%)

Blue64 (25.1%)

Hue90°

Saturation (HSL)37.25%

Lightness40%

Dominant channelGreen

Hex per channelR 66 · G 8C · B 40

Keep nerding

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#668C40

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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