Recognised as Colour
#217B78
- #217B78
- Cyan
- Dark
- Nearest: Teal
#217B78 is a cyan with RGB values 33, 123, 120 and HSL 178°, 58%, 31%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Teal.
Colour values
#217B78#217B78
HEX#217B78
RGBrgb(33, 123, 120)
RGB (0–1)0.1294, 0.4824, 0.4706
RGB percentages12.9%, 48.2%, 47.1%
HSLhsl(178, 57.7%, 30.6%)
HSV / HSBhsv(178, 73.2%, 48.2%)
CMYK73.2%, 0%, 2.4%, 51.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,194,296
CSS custom property--colour: #217B78;
Brightness & contrast
Relative luminance0.15845WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.04:1
Contrast with white5.04:1WCAG normal text: AA
Contrast with black4.17:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#DE8487
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.04:1WCAG large text: AAA
Contrast with black, large text4.17:1WCAG large text: AA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#7B2124
Analogous#217B4B, #21517B
Triadic#78217B, #7B7821
Split complementary#7B2151, #7B4B21
Tetradic#4B217B, #7B2124, #517B21
Tints, shades & saturation
Channel breakdown
R33
G123
B120
Red33 (12.9%)
Green123 (48.2%)
Blue120 (47.1%)
Hue178°
Saturation (HSL)57.69%
Lightness30.59%
Dominant channelGreen
Hex per channelR 21 · G 7B · B 78
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