Colour
#006440
- #006440
- Cyan
- Dark
- Nearest: Sea green
#006440 is a cyan with RGB values 0, 100, 64 and HSL 158°, 100%, 20%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Sea green.
Colour values
#006440#006440
HEX#006440
RGBrgb(0, 100, 64)
RGB (0–1)0, 0.3922, 0.251
RGB percentages0%, 39.2%, 25.1%
HSLhsl(158.4, 100%, 19.6%)
HSV / HSBhsv(158.4, 100%, 39.2%)
CMYK100%, 0%, 36%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer25,664
CSS custom property--colour: #006440;
Brightness & contrast
Relative luminance0.09485WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.25:1
Contrast with white7.25:1WCAG normal text: AAA
Contrast with black2.9:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#FF9BBF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.25:1WCAG large text: AAA
Contrast with black, large text2.9:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#640024
Analogous#00640E, #005664
Triadic#400064, #644000
Split complementary#640056, #640E00
Tetradic#0E0064, #640024, #566400
Tints, shades & saturation
Channel breakdown
R0
G100
B64
Red0 (0%)
Green100 (39.2%)
Blue64 (25.1%)
Hue158.4°
Saturation (HSL)100%
Lightness19.61%
Dominant channelGreen
Hex per channelR 00 · G 64 · B 40
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