Colour

#63DEFF

#63DEFF
Cyan
Light
Nearest: Sky blue

#63DEFF is a cyan with RGB values 99, 222, 255 and HSL 193°, 100%, 69%. It is a light colour, so black text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Sky blue.

Colour values

#63DEFF#63DEFF

HEX#63DEFF

RGBrgb(99, 222, 255)

RGB (0–1)0.3882, 0.8706, 1

RGB percentages38.8%, 87.1%, 100%

HSLhsl(192.7, 100%, 69.4%)

HSV / HSBhsv(192.7, 61.2%, 100%)

CMYK61.2%, 12.9%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,545,151

CSS custom property--colour: #63DEFF;

Brightness & contrast

Relative luminance0.62115WCAG 2.x, 0 is black and 1 is white

Perceived brightness198.2 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 13.42:1

Contrast with white1.56:1WCAG normal text: Fail

Contrast with black13.42:1WCAG normal text: AAA

Greyscale equivalent#C6C6C6

Inverted#9C2100

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#C9D8FFno red cones; affects about 1% of men; ΔE 28.6 from the original

Deuteranopia#B2C7FFno green cones; the most common form, about 1% of men; ΔE 30.5 from the original

Tritanopia#00E9E8no blue cones; rare, and affects men and women equally; ΔE 24.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.56:1WCAG large text: Fail

Contrast with black, large text13.42:1WCAG large text: AAA

Named colours

Sky blue · ΔE 11.8 Light skyblue · ΔE 14.5 Light blue · ΔE 20.4 Deep skyblue · ΔE 20.6 Dark turquoise · ΔE 21.3 Powder blue · ΔE 21.5

Nearest named CSS colourSky blue (#87CEEB)ΔE 11.81, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FF8463

Analogous#63FFD2, #6390FF

Triadic#FF63DE, #DEFF63

Split complementary#FF6390, #FFD263

Tetradic#D263FF, #FF8463, #90FF63

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FCFEFF

Lighter +20%#C9F4FF

Lighter +10%#96E9FF

Darker −10%#30D3FF

Darker −20%#00C7FC

Darker −30%#009EC9

Darker −40%#007696

More saturated +25%#63DEFF

Less saturated −25%#76D3EC

Channel breakdown

R99

G222

B255

Red99 (38.8%)

Green222 (87.1%)

Blue255 (100%)

Hue192.69°

Saturation (HSL)100%

Lightness69.41%

Dominant channelBlue

Hex per channelR 63 · G DE · B FF

Keep nerding

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

#63DEFF

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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