#63C4FF#63C4FF

#63C4FF is a light, vivid cyan. Relative luminance 0.494; OKLCH L 78.5% C 0.124 H 237.9°. Best body text is #000000 at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#63C4FF
RGB	rgb(99, 196, 255)
HSL	hsl(203, 100%, 69%)
HSV	hsv(203, 61%, 100%)
CMYK	cmyk(61.2%, 23.1%, 0%, 0%)
CIE-LAB	lab(75.67, -11.49, -37.55)
CIE-LCH	lch(75.67, 39.27, 252.98°)
OKLab	oklab(78.51% -0.066 -0.1053)
OKLCH	oklch(78.51% 0.124 237.9)
XYZ	xyz(42.9287, 49.3483, 101.8512)
Luminance	0.4935 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C4FF #FF9E63

analogous

#63FFEC #63C4FF #6376FF

triadic

#63C4FF #FF63C4 #C4FF63

tetradic

#63C4FF #EC63FF #FF9E63 #76FF63

square

#63C4FF #EC63FF #FF9E63 #76FF63

split-complementary

#63C4FF #FF6376 #FFEC63

monochromatic

#0090E8 #26ADFF #63C4FF #A0DBFF #DDF2FF

Accessibility & contrast

On white

1.93

#63C4FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.87

#63C4FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C4FF

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C4FF	#FFFFFF	#000000	##000000
##63C4FF	1.00	1.93	10.87	10.87
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.87	21.00	1.00	1.00
##000000	10.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9C3FF

Deuteranopia (green-blind)

#93B3FE

Tritanopia (blue-blind)

#00D3D8

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #63c4ff;
/* rgb */ color: rgb(99, 196, 255);
/* oklch */ color: oklch(78.5% 0.124 237.9);

Tailwind

colors: {
  custom: {
    50: '#9cd5ff',
    500: '#63c4ff',
    950: '#000000',
  },
}

SCSS

$custom: #63c4ff;
$custom-light: #9cd5ff;
$custom-dark: #000000;

JSON

{
  "hex": "#63c4ff",
  "rgb": {
    "r": 99,
    "g": 196,
    "b": 255
  },
  "hsl": {
    "h": 202.692,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.78505,
    "c": 0.12429,
    "h": 237.9
  },
  "luminance": 0.49353
}

Semantic roles & 50–950 ramp

primary

#63C4FF

secondary

#F5D9C8

accent

#5700E6

background

#FAFDFF

surface

#F4FAFF

border

#CED3D7

text

#0F1418

muted

#7F8386

Preview Lab

Preview with #63C4FF

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

Preview Lab → · Contrast checker → · Palette generator →