#63CBF0#63CBF0

#63CBF0 is a light, moderate cyan. Relative luminance 0.517; OKLCH L 79.4% C 0.109 H 224.1°. Best body text is #000000 at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#63CBF0
RGB	rgb(99, 203, 240)
HSL	hsl(196, 82%, 66%)
HSV	hsv(196, 59%, 94%)
CMYK	cmyk(58.8%, 15.4%, 0%, 5.9%)
CIE-LAB	lab(77.07, -19.66, -27.34)
CIE-LCH	lch(77.07, 33.68, 234.28°)
OKLab	oklab(79.44% -0.0785 -0.0761)
OKLCH	oklch(79.44% 0.109 224.1)
XYZ	xyz(42.2235, 51.6517, 90.1658)
Luminance	0.5166 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CBF0 #F08863

analogous

#63F0CF #63CBF0 #6385F0

triadic

#63CBF0 #F063CB #CBF063

tetradic

#63CBF0 #CF63F0 #F08863 #85F063

square

#63CBF0 #CF63F0 #F08863 #85F063

split-complementary

#63CBF0 #F06385 #F0CF63

monochromatic

#1397C6 #2BB8EB #63CBF0 #9BDEF5 #D3F0FB

Accessibility & contrast

On white

1.85

#63CBF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.33

#63CBF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CBF0

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CBF0	#FFFFFF	#000000	##000000
##63CBF0	1.00	1.85	11.33	11.33
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.33	21.00	1.00	1.00
##000000	11.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C7F2

Deuteranopia (green-blind)

#A2B8F0

Tritanopia (blue-blind)

#00D6D7

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #63cbf0;
/* rgb */ color: rgb(99, 203, 240);
/* oklch */ color: oklch(79.4% 0.109 224.1);

Tailwind

colors: {
  custom: {
    50: '#9bdbf5',
    500: '#63cbf0',
    950: '#000000',
  },
}

SCSS

$custom: #63cbf0;
$custom-light: #9bdbf5;
$custom-dark: #000000;

JSON

{
  "hex": "#63cbf0",
  "rgb": {
    "r": 99,
    "g": 203,
    "b": 240
  },
  "hsl": {
    "h": 195.745,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.79436,
    "c": 0.10931,
    "h": 224.1
  },
  "luminance": 0.51656
}

Semantic roles & 50–950 ramp

primary

#63CBF0

secondary

#C35A34

accent

#3F07DF

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63CBF0

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

Preview Lab → · Contrast checker → · Palette generator →