Colour

#00A9DB

#00A9DB
Cyan
Dark
Nearest: Deep skyblue

#00A9DB is a cyan with RGB values 0, 169, 219 and HSL 194°, 100%, 43%. It is a dark colour, so black text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#00A9DB#00A9DB

HEX#00A9DB

RGBrgb(0, 169, 219)

RGB (0–1)0, 0.6627, 0.8588

RGB percentages0%, 66.3%, 85.9%

HSLhsl(193.7, 100%, 42.9%)

HSV / HSBhsv(193.7, 100%, 85.9%)

CMYK100%, 22.8%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer43,483

CSS custom property--colour: #00A9DB;

Brightness & contrast

Relative luminance0.3349WCAG 2.x, 0 is black and 1 is white

Perceived brightness149.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.7:1

Contrast with white2.73:1WCAG normal text: Fail

Contrast with black7.7:1WCAG normal text: AAA

Greyscale equivalent#898989

Inverted#FF5624

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8EA6DDno red cones; affects about 1% of men; ΔE 24.3 from the original

Deuteranopia#7695DAno green cones; the most common form, about 1% of men; ΔE 26.4 from the original

Tritanopia#00B7BAno blue cones; rare, and affects men and women equally; ΔE 29.2 from the original

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

Contrast with white, large text2.73:1WCAG large text: Fail

Contrast with black, large text7.7:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 10.8 Light skyblue · ΔE 18.4 Steel blue · ΔE 19.2 Sky blue · ΔE 20.7 Cadetblue · ΔE 28.2 Light steelblue · ΔE 30

Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 10.77, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DB3200

Analogous#00DB9F, #003CDB

Triadic#DB00A9, #A9DB00

Split complementary#DB003C, #DB9F00

Tetradic#9F00DB, #DB3200, #3CDB00

Tints, shades & saturation

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

Lighter +40%#A8EBFF

Lighter +30%#75DFFF

Lighter +20%#42D4FF

Lighter +10%#0FC8FF

Darker −10%#0082A8

Darker −20%#005A75

Darker −30%#003342

Darker −40%#000C0F

More saturated +25%#00A9DB

Less saturated −25%#1B9AC0

Channel breakdown

G169

B219

Red0 (0%)

Green169 (66.3%)

Blue219 (85.9%)

Hue193.7°

Saturation (HSL)100%

Lightness42.94%

Dominant channelBlue

Hex per channelR 00 · G A9 · B DB

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#00A9DB

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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