#63D3FB#63D3FB

#63D3FB is a light, moderate cyan. Relative luminance 0.562; OKLCH L 81.7% C 0.116 H 224.5°. Best body text is #000000 at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#63D3FB
RGB	rgb(99, 211, 251)
HSL	hsl(196, 95%, 69%)
HSV	hsv(196, 61%, 98%)
CMYK	cmyk(60.6%, 15.9%, 0%, 1.6%)
CIE-LAB	lab(79.73, -20.50, -29.15)
CIE-LCH	lch(79.73, 35.64, 234.88°)
OKLab	oklab(81.69% -0.0828 -0.0812)
OKLCH	oklch(81.69% 0.116 224.5)
XYZ	xyz(45.8456, 56.2016, 99.6800)
Luminance	0.5621 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D3FB #FB8B63

analogous

#63FBD7 #63D3FB #6387FB

triadic

#63D3FB #FB63D3 #D3FB63

tetradic

#63D3FB #D763FB #FB8B63 #87FB63

square

#63D3FB #D763FB #FB8B63 #87FB63

split-complementary

#63D3FB #FB6387 #FBD763

monochromatic

#06A5DE #27C2F9 #63D3FB #9FE4FD #DAF5FE

Accessibility & contrast

On white

1.72

#63D3FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.24

#63D3FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D3FB

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D3FB	#FFFFFF	#000000	##000000
##63D3FB	1.00	1.72	12.24	12.24
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.24	21.00	1.00	1.00
##000000	12.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDCFFD

Deuteranopia (green-blind)

#A7BFFB

Tritanopia (blue-blind)

#00DFE0

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #63d3fb;
/* rgb */ color: rgb(99, 211, 251);
/* oklch */ color: oklch(81.7% 0.116 224.5);

Tailwind

colors: {
  custom: {
    50: '#9de0fc',
    500: '#63d3fb',
    950: '#000000',
  },
}

SCSS

$custom: #63d3fb;
$custom-light: #9de0fc;
$custom-dark: #000000;

JSON

{
  "hex": "#63d3fb",
  "rgb": {
    "r": 99,
    "g": 211,
    "b": 251
  },
  "hsl": {
    "h": 195.789,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.81688,
    "c": 0.11596,
    "h": 224.5
  },
  "luminance": 0.56206
}

Semantic roles & 50–950 ramp

primary

#63D3FB

secondary

#D5592D

accent

#3C00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D3FB

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

Preview Lab → · Contrast checker → · Palette generator →