Colour
#17A5A7
- #17A5A7
- Cyan
- Dark
- Nearest: Light seagreen
#17A5A7 is a cyan with RGB values 23, 165, 167 and HSL 181°, 76%, 37%. It is a dark colour, so black text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Light seagreen.
Colour values
#17A5A7#17A5A7
HEX#17A5A7
RGBrgb(23, 165, 167)
RGB (0–1)0.0902, 0.6471, 0.6549
RGB percentages9%, 64.7%, 65.5%
HSLhsl(180.8, 75.8%, 37.3%)
HSV / HSBhsv(180.8, 86.2%, 65.5%)
CMYK86.2%, 1.2%, 0%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,549,735
CSS custom property--colour: #17A5A7;
Brightness & contrast
Relative luminance0.29882WCAG 2.x, 0 is black and 1 is white
Perceived brightness139 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.98:1
Contrast with white3.01:1WCAG normal text: Fail
Contrast with black6.98:1WCAG normal text: AA
Greyscale equivalent#878787
Inverted#E85A58
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.01:1WCAG large text: AA
Contrast with black, large text6.98:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A71917
Analogous#17A761, #175DA7
Triadic#A717A5, #A5A717
Split complementary#A7175D, #A76117
Tetradic#6117A7, #A71917, #5DA717
Tints, shades & saturation
Channel breakdown
R23
G165
B167
Red23 (9%)
Green165 (64.7%)
Blue167 (65.5%)
Hue180.83°
Saturation (HSL)75.79%
Lightness37.25%
Dominant channelBlue
Hex per channelR 17 · G A5 · B A7
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