Recognised as Colour
#21756F
- #21756F
- Cyan
- Dark
- Nearest: Teal
#21756F is a cyan with RGB values 33, 117, 111 and HSL 176°, 56%, 29%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Teal.
Colour values
#21756F#21756F
HEX#21756F
RGBrgb(33, 117, 111)
RGB (0–1)0.1294, 0.4588, 0.4353
RGB percentages12.9%, 45.9%, 43.5%
HSLhsl(175.7, 56%, 29.4%)
HSV / HSBhsv(175.7, 71.8%, 45.9%)
CMYK71.8%, 0%, 5.1%, 54.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,192,751
CSS custom property--colour: #21756F;
Brightness & contrast
Relative luminance0.14194WCAG 2.x, 0 is black and 1 is white
Perceived brightness98.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.47:1
Contrast with white5.47:1WCAG normal text: AA
Contrast with black3.84:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#DE8A90
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.47:1WCAG large text: AAA
Contrast with black, large text3.84:1WCAG large text: AA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#752127
Analogous#217545, #215175
Triadic#6F2175, #756F21
Split complementary#752151, #754521
Tetradic#452175, #752127, #517521
Tints, shades & saturation
Channel breakdown
R33
G117
B111
Red33 (12.9%)
Green117 (45.9%)
Blue111 (43.5%)
Hue175.71°
Saturation (HSL)56%
Lightness29.41%
Dominant channelGreen
Hex per channelR 21 · G 75 · B 6F
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