#63CBFF#63CBFF

#63CBFF is a light, vivid cyan. Relative luminance 0.526; OKLCH L 80.1% C 0.121 H 232.8°. Best body text is #000000 at 11.52:1 contrast (WCAG AA passes).

Color values

HEX	#63CBFF
RGB	rgb(99, 203, 255)
HSL	hsl(200, 100%, 69%)
HSV	hsv(200, 61%, 100%)
CMYK	cmyk(61.2%, 20.4%, 0%, 0%)
CIE-LAB	lab(77.63, -15.18, -34.52)
CIE-LCH	lch(77.63, 37.71, 246.26°)
OKLab	oklab(80.06% -0.0732 -0.0966)
OKLCH	oklch(80.06% 0.121 232.8)
XYZ	xyz(44.5446, 52.5801, 102.3898)
Luminance	0.5259 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CBFF #FF9763

analogous

#63FFE5 #63CBFF #637DFF

triadic

#63CBFF #FF63CB #CBFF63

tetradic

#63CBFF #E563FF #FF9763 #7DFF63

square

#63CBFF #E563FF #FF9763 #7DFF63

split-complementary

#63CBFF #FF637D #FFE563

monochromatic

#009AE8 #26B7FF #63CBFF #A0DFFF #DDF4FF

Accessibility & contrast

On white

1.82

#63CBFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.52

#63CBFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CBFF

11.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CBFF	#FFFFFF	#000000	##000000
##63CBFF	1.00	1.82	11.52	11.52
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.52	21.00	1.00	1.00
##000000	11.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2C9FF

Deuteranopia (green-blind)

#9CB9FE

Tritanopia (blue-blind)

#00D9DC

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #63cbff;
/* rgb */ color: rgb(99, 203, 255);
/* oklch */ color: oklch(80.1% 0.121 232.8);

Tailwind

colors: {
  custom: {
    50: '#9ddaff',
    500: '#63cbff',
    950: '#000000',
  },
}

SCSS

$custom: #63cbff;
$custom-light: #9ddaff;
$custom-dark: #000000;

JSON

{
  "hex": "#63cbff",
  "rgb": {
    "r": 99,
    "g": 203,
    "b": 255
  },
  "hsl": {
    "h": 200,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.80061,
    "c": 0.12116,
    "h": 232.8
  },
  "luminance": 0.52585
}

Semantic roles & 50–950 ramp

primary

#63CBFF

secondary

#DA662C

accent

#4D00E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1418

muted

#808386

Preview Lab

Preview with #63CBFF

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

Preview Lab → · Contrast checker → · Palette generator →