#63CCF0#63CCF0

#63CCF0 is a light, moderate cyan. Relative luminance 0.521; OKLCH L 79.7% C 0.109 H 223.3°. Best body text is #000000 at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#63CCF0
RGB	rgb(99, 204, 240)
HSL	hsl(195, 82%, 66%)
HSV	hsv(195, 59%, 94%)
CMYK	cmyk(58.8%, 15%, 0%, 5.9%)
CIE-LAB	lab(77.36, -20.17, -26.91)
CIE-LCH	lch(77.36, 33.63, 233.14°)
OKLab	oklab(79.66% -0.0795 -0.0749)
OKLCH	oklch(79.66% 0.109 223.3)
XYZ	xyz(42.4604, 52.1255, 90.2447)
Luminance	0.5213 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CCF0 #F08763

analogous

#63F0CE #63CCF0 #6386F0

triadic

#63CCF0 #F063CC #CCF063

tetradic

#63CCF0 #CE63F0 #F08763 #86F063

square

#63CCF0 #CE63F0 #F08763 #86F063

split-complementary

#63CCF0 #F06386 #F0CE63

monochromatic

#1398C6 #2BBAEB #63CCF0 #9BDEF5 #D3F1FB

Accessibility & contrast

On white

1.84

#63CCF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.43

#63CCF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CCF0

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CCF0	#FFFFFF	#000000	##000000
##63CCF0	1.00	1.84	11.43	11.43
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.43	21.00	1.00	1.00
##000000	11.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7C8F2

Deuteranopia (green-blind)

#A3B9F0

Tritanopia (blue-blind)

#00D7D7

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #63ccf0;
/* rgb */ color: rgb(99, 204, 240);
/* oklch */ color: oklch(79.7% 0.109 223.3);

Tailwind

colors: {
  custom: {
    50: '#9bdbf5',
    500: '#63ccf0',
    950: '#000000',
  },
}

SCSS

$custom: #63ccf0;
$custom-light: #9bdbf5;
$custom-dark: #000000;

JSON

{
  "hex": "#63ccf0",
  "rgb": {
    "r": 99,
    "g": 204,
    "b": 240
  },
  "hsl": {
    "h": 195.319,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.79663,
    "c": 0.10921,
    "h": 223.3
  },
  "luminance": 0.5213
}

Semantic roles & 50–950 ramp

primary

#63CCF0

secondary

#C35934

accent

#3E07DF

background

#FCFEFF

surface

#F6FBFE

border

#D0D4D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63CCF0

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

Preview Lab → · Contrast checker → · Palette generator →