Colour

#00AACC

#00AACC
Cyan
Dark
Nearest: Deep skyblue

#00AACC is a cyan with RGB values 0, 170, 204 and HSL 190°, 100%, 40%. It is a dark colour, so black text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#00AACC#00AACC

HEX#00AACC

HEX (short)#0AC

RGBrgb(0, 170, 204)

RGB (0–1)0, 0.6667, 0.8

RGB percentages0%, 66.7%, 80%

HSLhsl(190, 100%, 40%)

HSV / HSBhsv(190, 100%, 80%)

CMYK100%, 16.7%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer43,724

CSS custom property--colour: #00AACC;

Brightness & contrast

Relative luminance0.33109WCAG 2.x, 0 is black and 1 is white

Perceived brightness147.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.62:1

Contrast with white2.76:1WCAG normal text: Fail

Contrast with black7.62:1WCAG normal text: AAA

Greyscale equivalent#888888

Inverted#FF5533

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#95A5CEno red cones; affects about 1% of men; ΔE 28.7 from the original

Deuteranopia#7E95CCno green cones; the most common form, about 1% of men; ΔE 30.2 from the original

Tritanopia#00B5B5no blue cones; rare, and affects men and women equally; ΔE 21.1 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text2.76:1WCAG large text: Fail

Contrast with black, large text7.62:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 18.4 Sky blue · ΔE 18.8 Light skyblue · ΔE 20.6 Cadetblue · ΔE 20.9 Dark cyan · ΔE 23 Dark turquoise · ΔE 23.8

Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 18.39, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#CC2200

Analogous#00CC88, #0044CC

Triadic#CC00AA, #AACC00

Split complementary#CC0044, #CC8800

Tetradic#8800CC, #CC2200, #44CC00

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#99EEFF

Lighter +30%#66E6FF

Lighter +20%#33DDFF

Lighter +10%#00D5FF

Darker −10%#008099

Darker −20%#005566

Darker −30%#002B33

Darker −40%#000000

More saturated +25%#00AACC

Less saturated −25%#1999B3

Channel breakdown

G170

B204

Red0 (0%)

Green170 (66.7%)

Blue204 (80%)

Hue190°

Saturation (HSL)100%

Lightness40%

Dominant channelBlue

Hex per channelR 00 · G AA · B CC

Keep nerding

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#00AACC

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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