#63DAFB#63DAFB

#63DAFB is a very light, moderate cyan. Relative luminance 0.598; OKLCH L 83.3% C 0.116 H 218.9°. Best body text is #000000 at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#63DAFB
RGB	rgb(99, 218, 251)
HSL	hsl(193, 95%, 69%)
HSV	hsv(193, 61%, 98%)
CMYK	cmyk(60.6%, 13.1%, 0%, 1.6%)
CIE-LAB	lab(81.71, -24.02, -26.13)
CIE-LCH	lch(81.71, 35.49, 227.41°)
OKLab	oklab(83.27% -0.0899 -0.0726)
OKLCH	oklch(83.27% 0.116 218.9)
XYZ	xyz(47.6226, 59.7556, 100.2723)
Luminance	0.5976 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63DAFB #FB8463

analogous

#63FBD0 #63DAFB #638EFB

triadic

#63DAFB #FB63DA #DAFB63

tetradic

#63DAFB #D063FB #FB8463 #8EFB63

square

#63DAFB #D063FB #FB8463 #8EFB63

split-complementary

#63DAFB #FB638E #FBD063

monochromatic

#06AFDE #27CCF9 #63DAFB #9FE8FD #DAF6FE

Accessibility & contrast

On white

1.62

#63DAFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.95

#63DAFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63DAFB

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63DAFB	#FFFFFF	#000000	##000000
##63DAFB	1.00	1.62	12.95	12.95
#FFFFFF	1.62	1.00	21.00	21.00
#000000	12.95	21.00	1.00	1.00
##000000	12.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5D4FD

Deuteranopia (green-blind)

#AFC4FB

Tritanopia (blue-blind)

#00E5E4

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #63dafb;
/* rgb */ color: rgb(99, 218, 251);
/* oklch */ color: oklch(83.3% 0.116 218.9);

Tailwind

colors: {
  custom: {
    50: '#9de5fc',
    500: '#63dafb',
    950: '#000000',
  },
}

SCSS

$custom: #63dafb;
$custom-light: #9de5fc;
$custom-dark: #000000;

JSON

{
  "hex": "#63dafb",
  "rgb": {
    "r": 99,
    "g": 218,
    "b": 251
  },
  "hsl": {
    "h": 193.026,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.8327,
    "c": 0.11559,
    "h": 218.9
  },
  "luminance": 0.5976
}

Semantic roles & 50–950 ramp

primary

#63DAFB

secondary

#D5522D

accent

#3200E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #63DAFB

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

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