#63D3FF#63D3FF

#63D3FF is a light, moderate cyan. Relative luminance 0.565; OKLCH L 81.9% C 0.119 H 226.8°. Best body text is #000000 at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#63D3FF
RGB	rgb(99, 211, 255)
HSL	hsl(197, 100%, 69%)
HSV	hsv(197, 61%, 100%)
CMYK	cmyk(61.2%, 17.3%, 0%, 0%)
CIE-LAB	lab(79.87, -19.31, -31.06)
CIE-LCH	lch(79.87, 36.57, 238.12°)
OKLab	oklab(81.85% -0.0813 -0.0866)
OKLCH	oklch(81.85% 0.119 226.8)
XYZ	xyz(46.4828, 56.4565, 103.0359)
Luminance	0.5646 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D3FF #FF8F63

analogous

#63FFDD #63D3FF #6385FF

triadic

#63D3FF #FF63D3 #D3FF63

tetradic

#63D3FF #DD63FF #FF8F63 #85FF63

square

#63D3FF #DD63FF #FF8F63 #85FF63

split-complementary

#63D3FF #FF6385 #FFDD63

monochromatic

#00A6E8 #26C2FF #63D3FF #A0E4FF #DDF6FF

Accessibility & contrast

On white

1.71

#63D3FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.29

#63D3FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D3FF

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D3FF	#FFFFFF	#000000	##000000
##63D3FF	1.00	1.71	12.29	12.29
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.29	21.00	1.00	1.00
##000000	12.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBCFFF

Deuteranopia (green-blind)

#A5BFFE

Tritanopia (blue-blind)

#00E0E1

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #63d3ff;
/* rgb */ color: rgb(99, 211, 255);
/* oklch */ color: oklch(81.9% 0.119 226.8);

Tailwind

colors: {
  custom: {
    50: '#9de0ff',
    500: '#63d3ff',
    950: '#000000',
  },
}

SCSS

$custom: #63d3ff;
$custom-light: #9de0ff;
$custom-dark: #000000;

JSON

{
  "hex": "#63d3ff",
  "rgb": {
    "r": 99,
    "g": 211,
    "b": 255
  },
  "hsl": {
    "h": 196.923,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.81852,
    "c": 0.11883,
    "h": 226.8
  },
  "luminance": 0.56461
}

Semantic roles & 50–950 ramp

primary

#63D3FF

secondary

#DA5D2C

accent

#4100E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101518

muted

#808486

Preview Lab

Preview with #63D3FF

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →