#63D8FB#63D8FB

#63D8FB is a very light, moderate cyan. Relative luminance 0.587; OKLCH L 82.8% C 0.116 H 220.5°. Best body text is #000000 at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#63D8FB
RGB	rgb(99, 216, 251)
HSL	hsl(194, 95%, 69%)
HSV	hsv(194, 61%, 98%)
CMYK	cmyk(60.6%, 13.9%, 0%, 1.6%)
CIE-LAB	lab(81.14, -23.02, -26.99)
CIE-LCH	lch(81.14, 35.47, 229.54°)
OKLab	oklab(82.82% -0.0879 -0.0751)
OKLCH	oklch(82.82% 0.116 220.5)
XYZ	xyz(47.1071, 58.7246, 100.1005)
Luminance	0.5873 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D8FB #FB8663

analogous

#63FBD2 #63D8FB #638CFB

triadic

#63D8FB #FB63D8 #D8FB63

tetradic

#63D8FB #D263FB #FB8663 #8CFB63

square

#63D8FB #D263FB #FB8663 #8CFB63

split-complementary

#63D8FB #FB638C #FBD263

monochromatic

#06ACDE #27C9F9 #63D8FB #9FE7FD #DAF6FE

Accessibility & contrast

On white

1.65

#63D8FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.75

#63D8FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D8FB

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D8FB	#FFFFFF	#000000	##000000
##63D8FB	1.00	1.65	12.75	12.75
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.75	21.00	1.00	1.00
##000000	12.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3D3FD

Deuteranopia (green-blind)

#ADC2FB

Tritanopia (blue-blind)

#00E3E3

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #63d8fb;
/* rgb */ color: rgb(99, 216, 251);
/* oklch */ color: oklch(82.8% 0.116 220.5);

Tailwind

colors: {
  custom: {
    50: '#9de4fc',
    500: '#63d8fb',
    950: '#000000',
  },
}

SCSS

$custom: #63d8fb;
$custom-light: #9de4fc;
$custom-dark: #000000;

JSON

{
  "hex": "#63d8fb",
  "rgb": {
    "r": 99,
    "g": 216,
    "b": 251
  },
  "hsl": {
    "h": 193.816,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.82817,
    "c": 0.11559,
    "h": 220.5
  },
  "luminance": 0.58729
}

Semantic roles & 50–950 ramp

primary

#63D8FB

secondary

#D5542D

accent

#3500E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #63D8FB

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

Preview Lab → · Contrast checker → · Palette generator →