Colour
#355C51
- #355C51
- Cyan
- Dark
- Nearest: Dark slate grey
#355C51 is a cyan with RGB values 53, 92, 81 and HSL 163°, 27%, 28%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#355C51#355C51
HEX#355C51
RGBrgb(53, 92, 81)
RGB (0–1)0.2078, 0.3608, 0.3176
RGB percentages20.8%, 36.1%, 31.8%
HSLhsl(163.1, 26.9%, 28.4%)
HSV / HSBhsv(163.1, 42.4%, 36.1%)
CMYK42.4%, 0%, 12%, 63.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,497,041
CSS custom property--colour: #355C51;
Brightness & contrast
Relative luminance0.09005WCAG 2.x, 0 is black and 1 is white
Perceived brightness81 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.5:1
Contrast with white7.5:1WCAG normal text: AAA
Contrast with black2.8:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#CAA3AE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.5:1WCAG large text: AAA
Contrast with black, large text2.8:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#5C3540
Analogous#355C3E, #35535C
Triadic#51355C, #5C5135
Split complementary#5C3553, #5C3E35
Tetradic#3E355C, #5C3540, #535C35
Tints, shades & saturation
Channel breakdown
R53
G92
B81
Red53 (20.8%)
Green92 (36.1%)
Blue81 (31.8%)
Hue163.08°
Saturation (HSL)26.9%
Lightness28.43%
Dominant channelGreen
Hex per channelR 35 · G 5C · B 51
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