Recognised as Colour
#63FDFF
- #63FDFF
- Cyan
- Light
- Nearest: Aqua
#63FDFF is a cyan with RGB values 99, 253, 255 and HSL 181°, 100%, 69%. It is a light colour, so black text on it reaches 17:1 contrast (AAA for normal text). The nearest named colour is Aqua.
Colour values
#63FDFF#63FDFF
HEX#63FDFF
RGBrgb(99, 253, 255)
RGB (0–1)0.3882, 0.9922, 1
RGB percentages38.8%, 99.2%, 100%
HSLhsl(180.8, 100%, 69.4%)
HSV / HSBhsv(180.8, 61.2%, 100%)
CMYK61.2%, 0.8%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,553,087
CSS custom property--colour: #63FDFF;
Brightness & contrast
Relative luminance0.80123WCAG 2.x, 0 is black and 1 is white
Perceived brightness218.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 17.02:1
Contrast with white1.23:1WCAG normal text: Fail
Contrast with black17.02:1WCAG normal text: AAA
Greyscale equivalent#DCDCDC
Inverted#9C0200
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.23:1WCAG large text: Fail
Contrast with black, large text17.02:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#FF6563
Analogous#63FFB3, #63AFFF
Triadic#FF63FD, #FDFF63
Split complementary#FF63AF, #FFB363
Tetradic#B363FF, #FF6563, #AFFF63
Tints, shades & saturation
Channel breakdown
R99
G253
B255
Red99 (38.8%)
Green253 (99.2%)
Blue255 (100%)
Hue180.77°
Saturation (HSL)100%
Lightness69.41%
Dominant channelBlue
Hex per channelR 63 · G FD · B FF
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