#63D8FD#63D8FD

#63D8FD is a very light, moderate cyan. Relative luminance 0.589; OKLCH L 82.9% C 0.117 H 221.8°. Best body text is #000000 at 12.77:1 contrast (WCAG AA passes).

Color values

HEX	#63D8FD
RGB	rgb(99, 216, 253)
HSL	hsl(194, 97%, 69%)
HSV	hsv(194, 61%, 99%)
CMYK	cmyk(60.9%, 14.6%, 0%, 0.8%)
CIE-LAB	lab(81.21, -22.43, -27.94)
CIE-LCH	lch(81.21, 35.83, 231.24°)
OKLab	oklab(82.9% -0.0871 -0.0778)
OKLCH	oklch(82.9% 0.117 221.8)
XYZ	xyz(47.4240, 58.8514, 101.7696)
Luminance	0.5886 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D8FD #FD8863

analogous

#63FDD5 #63D8FD #638BFD

triadic

#63D8FD #FD63D8 #D8FD63

tetradic

#63D8FD #D563FD #FD8863 #8BFD63

square

#63D8FD #D563FD #FD8863 #8BFD63

split-complementary

#63D8FD #FD638B #FDD563

monochromatic

#03ADE3 #27C9FC #63D8FD #9FE7FE #DCF6FF

Accessibility & contrast

On white

1.64

#63D8FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.77

#63D8FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D8FD

12.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D8FD	#FFFFFF	#000000	##000000
##63D8FD	1.00	1.64	12.77	12.77
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.77	21.00	1.00	1.00
##000000	12.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2D3FF

Deuteranopia (green-blind)

#ACC3FD

Tritanopia (blue-blind)

#00E4E4

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #63d8fd;
/* rgb */ color: rgb(99, 216, 253);
/* oklch */ color: oklch(82.9% 0.117 221.8);

Tailwind

colors: {
  custom: {
    50: '#9de4fe',
    500: '#63d8fd',
    950: '#000000',
  },
}

SCSS

$custom: #63d8fd;
$custom-light: #9de4fe;
$custom-dark: #000000;

JSON

{
  "hex": "#63d8fd",
  "rgb": {
    "r": 99,
    "g": 216,
    "b": 253
  },
  "hsl": {
    "h": 194.416,
    "s": 97.468,
    "l": 69.02
  },
  "oklch": {
    "l": 0.82897,
    "c": 0.11681,
    "h": 221.8
  },
  "luminance": 0.58856
}

Semantic roles & 50–950 ramp

primary

#63D8FD

secondary

#D7562D

accent

#3700E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #63D8FD

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

Preview Lab → · Contrast checker → · Palette generator →