#63C1FD#63C1FD

#63C1FD is a light, vivid cyan. Relative luminance 0.479; OKLCH L 77.8% C 0.124 H 239.1°. Best body text is #000000 at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#63C1FD
RGB	rgb(99, 193, 253)
HSL	hsl(203, 97%, 69%)
HSV	hsv(203, 61%, 99%)
CMYK	cmyk(60.9%, 23.7%, 0%, 0.8%)
CIE-LAB	lab(74.75, -10.51, -37.90)
CIE-LCH	lch(74.75, 39.33, 254.50°)
OKLab	oklab(77.75% -0.0636 -0.1063)
OKLCH	oklch(77.75% 0.124 239.1)
XYZ	xyz(41.9385, 47.8803, 99.9411)
Luminance	0.4788 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C1FD #FD9F63

analogous

#63FDEC #63C1FD #6374FD

triadic

#63C1FD #FD63C1 #C1FD63

tetradic

#63C1FD #EC63FD #FD9F63 #74FD63

square

#63C1FD #EC63FD #FD9F63 #74FD63

split-complementary

#63C1FD #FD6374 #FDEC63

monochromatic

#038CE3 #27A9FC #63C1FD #9FD9FE #DCF1FF

Accessibility & contrast

On white

1.99

#63C1FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.58

#63C1FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C1FD

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C1FD	#FFFFFF	#000000	##000000
##63C1FD	1.00	1.99	10.58	10.58
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.58	21.00	1.00	1.00
##000000	10.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6C1FF

Deuteranopia (green-blind)

#90B1FC

Tritanopia (blue-blind)

#00D0D5

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #63c1fd;
/* rgb */ color: rgb(99, 193, 253);
/* oklch */ color: oklch(77.8% 0.124 239.1);

Tailwind

colors: {
  custom: {
    50: '#9cd3fe',
    500: '#63c1fd',
    950: '#000000',
  },
}

SCSS

$custom: #63c1fd;
$custom-light: #9cd3fe;
$custom-dark: #000000;

JSON

{
  "hex": "#63c1fd",
  "rgb": {
    "r": 99,
    "g": 193,
    "b": 253
  },
  "hsl": {
    "h": 203.377,
    "s": 97.468,
    "l": 69.02
  },
  "oklch": {
    "l": 0.77751,
    "c": 0.12391,
    "h": 239.1
  },
  "luminance": 0.47884
}

Semantic roles & 50–950 ramp

primary

#63C1FD

secondary

#F4D9C7

accent

#5900E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1418

muted

#7F8286

Preview Lab

Preview with #63C1FD

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

Preview Lab → · Contrast checker → · Palette generator →