Colour

#28DAFF

#28DAFF
Cyan
Light
Nearest: Sky blue

#28DAFF is a cyan with RGB values 40, 218, 255 and HSL 190°, 100%, 58%. It is a light colour, so black text on it reaches 12.6:1 contrast (AAA for normal text). The nearest named colour is Sky blue.

Colour values

#28DAFF#28DAFF

HEX#28DAFF

RGBrgb(40, 218, 255)

RGB (0–1)0.1569, 0.8549, 1

RGB percentages15.7%, 85.5%, 100%

HSLhsl(190.3, 100%, 57.8%)

HSV / HSBhsv(190.3, 84.3%, 100%)

CMYK84.3%, 14.5%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,677,503

CSS custom property--colour: #28DAFF;

Brightness & contrast

Relative luminance0.57814WCAG 2.x, 0 is black and 1 is white

Perceived brightness189.2 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 12.56:1

Contrast with white1.67:1WCAG normal text: Fail

Contrast with black12.56:1WCAG normal text: AAA

Greyscale equivalent#B7B7B7

Inverted#D72500

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#C1D3FFno red cones; affects about 1% of men; ΔE 33.9 from the original

Deuteranopia#A6C0FFno green cones; the most common form, about 1% of men; ΔE 35.9 from the original

Tritanopia#00E7E6no blue cones; rare, and affects men and women equally; ΔE 23.2 from the original

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

Contrast with white, large text1.67:1WCAG large text: Fail

Contrast with black, large text12.56:1WCAG large text: AAA

Named colours

Sky blue · ΔE 17.3 Light skyblue · ΔE 19 Deep skyblue · ΔE 19.2 Dark turquoise · ΔE 20.1 Medium turquoise · ΔE 23.2 Aqua · ΔE 26.4

Nearest named CSS colourSky blue (#87CEEB)ΔE 17.34, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FF4D28

Analogous#28FFB9, #286EFF

Triadic#FF28DA, #DAFF28

Split complementary#FF286E, #FFB928

Tetradic#B928FF, #FF4D28, #6EFF28

Tints, shades & saturation

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

Lighter +40%#F4FDFF

Lighter +30%#C1F4FF

Lighter +20%#8EECFF

Lighter +10%#5BE3FF

Darker −10%#00CAF4

Darker −20%#00A0C1

Darker −30%#00768E

Darker −40%#004B5B

More saturated +25%#28DAFF

Less saturated −25%#43C8E4

Channel breakdown

R40

G218

B255

Red40 (15.7%)

Green218 (85.5%)

Blue255 (100%)

Hue190.33°

Saturation (HSL)100%

Lightness57.84%

Dominant channelBlue

Hex per channelR 28 · G DA · B FF

Keep nerding

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#28DAFF

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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