Colour
#366C6C
- #366C6C
- Cyan
- Dark
- Nearest: Dark slate grey
#366C6C is a cyan with RGB values 54, 108, 108 and HSL 180°, 33%, 32%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.
Colour values
#366C6C#366C6C
HEX#366C6C
RGBrgb(54, 108, 108)
RGB (0–1)0.2118, 0.4235, 0.4235
RGB percentages21.2%, 42.4%, 42.4%
HSLhsl(180, 33.3%, 31.8%)
HSV / HSBhsv(180, 50%, 42.4%)
CMYK50%, 0%, 0%, 57.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,566,700
CSS custom property--colour: #366C6C;
Brightness & contrast
Relative luminance0.12592WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.97:1
Contrast with white5.97:1WCAG normal text: AA
Contrast with black3.52:1WCAG normal text: Fail
Greyscale equivalent#616161
Inverted#C99393
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.97:1WCAG large text: AAA
Contrast with black, large text3.52:1WCAG large text: AA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#6C3636
Analogous#366C51, #36516C
Triadic#6C366C, #6C6C36
Split complementary#6C3651, #6C5136
Tetradic#51366C, #6C3636, #516C36
Tints, shades & saturation
Channel breakdown
R54
G108
B108
Red54 (21.2%)
Green108 (42.4%)
Blue108 (42.4%)
Hue180°
Saturation (HSL)33.33%
Lightness31.76%
Dominant channelGreen and Blue
Hex per channelR 36 · G 6C · B 6C
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