Colour

#0099CC

#0099CC
Cyan
Dark
Nearest: Steel blue

#0099CC is a cyan with RGB values 0, 153, 204 and HSL 195°, 100%, 40%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#0099CC#0099CC

HEX#0099CC

HEX (short)#09C

RGBrgb(0, 153, 204)

RGB (0–1)0, 0.6, 0.8

RGB percentages0%, 60%, 80%

HSLhsl(195, 100%, 40%)

HSV / HSBhsv(195, 100%, 80%)

CMYK100%, 25%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer39,372

CSS custom property--colour: #0099CC;

Brightness & contrast

Relative luminance0.27142WCAG 2.x, 0 is black and 1 is white

Perceived brightness136 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.43:1

Contrast with white3.27:1WCAG normal text: Fail

Contrast with black6.43:1WCAG normal text: AA

Greyscale equivalent#7C7C7C

Inverted#FF6633

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7F97CEno red cones; affects about 1% of men; ΔE 21.4 from the original

Deuteranopia#6787CBno green cones; the most common form, about 1% of men; ΔE 23.3 from the original

Tritanopia#00A7AAno blue cones; rare, and affects men and women equally; ΔE 30.3 from the original

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

Contrast with white, large text3.27:1WCAG large text: AA

Contrast with black, large text6.43:1WCAG large text: AAA

Named colours

Steel blue · ΔE 13.5 Deep skyblue · ΔE 15.3 Light skyblue · ΔE 22.3 Sky blue · ΔE 24.7 Light slate grey · ΔE 27.9 Cornflower blue · ΔE 28.4

Nearest named CSS colourSteel blue (#4682B4)ΔE 13.55, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CC3300

Analogous#00CC99, #0033CC

Triadic#CC0099, #99CC00

Split complementary#CC0033, #CC9900

Tetradic#9900CC, #CC3300, #33CC00

Tints, shades & saturation

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

Lighter +40%#99E6FF

Lighter +30%#66D9FF

Lighter +20%#33CCFF

Lighter +10%#00BFFF

Darker −10%#007399

Darker −20%#004D66

Darker −30%#002633

Darker −40%#000000

More saturated +25%#0099CC

Less saturated −25%#198CB3

Channel breakdown

G153

B204

Red0 (0%)

Green153 (60%)

Blue204 (80%)

Hue195°

Saturation (HSL)100%

Lightness40%

Dominant channelBlue

Hex per channelR 00 · G 99 · B CC

Keep nerding

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#0099CC

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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