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Colour

#63DDFB

  • #63DDFB
  • Cyan
  • Light
  • Nearest: Sky blue

#63DDFB is a cyan with RGB values 99, 221, 251 and HSL 192°, 95%, 69%. It is a light colour, so black text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Sky blue.

Colour values

#63DDFB#63DDFB
HEX#63DDFB
RGBrgb(99, 221, 251)
RGB (0–1)0.3882, 0.8667, 0.9843
RGB percentages38.8%, 86.7%, 98.4%
HSLhsl(191.8, 95%, 68.6%)
HSV / HSBhsv(191.8, 60.6%, 98.4%)
CMYK60.6%, 12%, 0%, 1.6%naive device-independent conversion; real print needs an ICC profile
24-bit integer6,544,891
CSS custom property--colour: #63DDFB;

Brightness & contrast

Relative luminance0.61331WCAG 2.x, 0 is black and 1 is white
Perceived brightness196.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.27:1
Contrast with white1.58:1WCAG normal text: Fail
Contrast with black13.27:1WCAG normal text: AAA
Greyscale equivalent#C5C5C5
Inverted#9C2204

Colour vision & accessibility

Protanopia#C9D7FDno red cones; affects about 1% of men; ΔE 29.2 from the original
Deuteranopia#B3C6FBno green cones; the most common form, about 1% of men; ΔE 31 from the original
Tritanopia#00E8E6no blue cones; rare, and affects men and women equally; ΔE 23.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.58:1WCAG large text: Fail
Contrast with black, large text13.27:1WCAG large text: AAA

Named colours

Nearest named CSS colourSky blue (#87CEEB)ΔE 11.73, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#FB8163
Analogous#63FBCD, #6391FB
Triadic#FB63DD, #DDFB63
Split complementary#FB6391, #FBCD63
Tetradic#CD63FB, #FB8163, #91FB63

Tints, shades & saturation

Lighter +40%#FFFFFF
Lighter +30%#F8FEFF
Lighter +20%#C6F3FE
Lighter +10%#95E8FC
Darker −10%#31D2FA
Darker −20%#06C3F2
Darker −30%#059BC0
Darker −40%#04738E
More saturated +25%#5FDFFF
Less saturated −25%#77D1E7

Channel breakdown

R99
G221
B251
Red99 (38.8%)
Green221 (86.7%)
Blue251 (98.4%)
Hue191.84°
Saturation (HSL)95%
Lightness68.63%
Dominant channelBlue
Hex per channelR 63 · G DD · B FB

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Every value on this page was computed from “63ddfb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.