Recognised as Colour
#01ACD2
- #01ACD2
- Cyan
- Dark
- Nearest: Deep skyblue
#01ACD2 is a cyan with RGB values 1, 172, 210 and HSL 191°, 99%, 41%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.
Colour values
#01ACD2#01ACD2
HEX#01ACD2
RGBrgb(1, 172, 210)
RGB (0–1)0.0039, 0.6745, 0.8235
RGB percentages0.4%, 67.5%, 82.4%
HSLhsl(190.9, 99.1%, 41.4%)
HSV / HSBhsv(190.9, 99.5%, 82.4%)
CMYK99.5%, 18.1%, 0%, 17.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer109,778
CSS custom property--colour: #01ACD2;
Brightness & contrast
Relative luminance0.34165WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.83:1
Contrast with white2.68:1WCAG normal text: Fail
Contrast with black7.83:1WCAG normal text: AAA
Greyscale equivalent#8A8A8A
Inverted#FE532D
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.68:1WCAG large text: Fail
Contrast with black, large text7.83:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#D22701
Analogous#01D28F, #0144D2
Triadic#D201AC, #ACD201
Split complementary#D20144, #D28F01
Tetradic#8F01D2, #D22701, #44D201
Tints, shades & saturation
Channel breakdown
R1
G172
B210
Red1 (0.4%)
Green172 (67.5%)
Blue210 (82.4%)
Hue190.91°
Saturation (HSL)99.05%
Lightness41.37%
Dominant channelBlue
Hex per channelR 01 · G AC · B D2
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Harmonies
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