Recognised as Colour
#668F18
- #668F18
- Green
- Dark
- Nearest: Olivedrab
#668F18 is a green with RGB values 102, 143, 24 and HSL 81°, 71%, 33%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Olivedrab.
Colour values
#668F18#668F18
HEX#668F18
RGBrgb(102, 143, 24)
RGB (0–1)0.4, 0.5608, 0.0941
RGB percentages40%, 56.1%, 9.4%
HSLhsl(80.7, 71.3%, 32.7%)
HSV / HSBhsv(80.7, 83.2%, 56.1%)
CMYK28.7%, 0%, 83.2%, 43.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,721,304
CSS custom property--colour: #668F18;
Brightness & contrast
Relative luminance0.22536WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.51:1
Contrast with white3.81:1WCAG normal text: Fail
Contrast with black5.51:1WCAG normal text: AA
Greyscale equivalent#7E7E7E
Inverted#9970E7
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.81:1WCAG large text: AA
Contrast with black, large text5.51:1WCAG large text: AAA
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#41188F
Analogous#8F7C18, #2B8F18
Triadic#18668F, #8F1866
Split complementary#182B8F, #7C188F
Tetradic#188F7C, #41188F, #8F182B
Tints, shades & saturation
Channel breakdown
R102
G143
B24
Red102 (40%)
Green143 (56.1%)
Blue24 (9.4%)
Hue80.67°
Saturation (HSL)71.26%
Lightness32.75%
Dominant channelGreen
Hex per channelR 66 · G 8F · B 18
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