Recognised as Colour
#216D51
- #216D51
- Cyan
- Dark
- Nearest: Sea green
#216D51 is a cyan with RGB values 33, 109, 81 and HSL 158°, 54%, 28%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Sea green.
Colour values
#216D51#216D51
HEX#216D51
RGBrgb(33, 109, 81)
RGB (0–1)0.1294, 0.4275, 0.3176
RGB percentages12.9%, 42.7%, 31.8%
HSLhsl(157.9, 53.5%, 27.8%)
HSV / HSBhsv(157.9, 69.7%, 42.7%)
CMYK69.7%, 0%, 25.7%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,190,673
CSS custom property--colour: #216D51;
Brightness & contrast
Relative luminance0.11855WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.23:1
Contrast with white6.23:1WCAG normal text: AA
Contrast with black3.37:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#DE92AE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.23:1WCAG large text: AAA
Contrast with black, large text3.37:1WCAG large text: AA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#6D213D
Analogous#216D2B, #21636D
Triadic#51216D, #6D5121
Split complementary#6D2163, #6D2B21
Tetradic#2B216D, #6D213D, #636D21
Tints, shades & saturation
Channel breakdown
R33
G109
B81
Red33 (12.9%)
Green109 (42.7%)
Blue81 (31.8%)
Hue157.89°
Saturation (HSL)53.52%
Lightness27.84%
Dominant channelGreen
Hex per channelR 21 · G 6D · B 51
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