#63CBEB#63CBEB

#63CBEB is a light, moderate cyan. Relative luminance 0.514; OKLCH L 79.2% C 0.106 H 220.8°. Best body text is #000000 at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#63CBEB
RGB	rgb(99, 203, 235)
HSL	hsl(194, 77%, 65%)
HSV	hsv(194, 58%, 92%)
CMYK	cmyk(57.9%, 13.6%, 0%, 7.8%)
CIE-LAB	lab(76.90, -21.12, -24.93)
CIE-LCH	lch(76.90, 32.67, 229.73°)
OKLab	oklab(79.24% -0.0803 -0.0693)
OKLCH	oklch(79.24% 0.106 220.8)
XYZ	xyz(41.4910, 51.3587, 86.3078)
Luminance	0.5136 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CBEB #EB8363

analogous

#63EBC7 #63CBEB #6387EB

triadic

#63CBEB #EB63CB #CBEB63

tetradic

#63CBEB #C763EB #EB8363 #87EB63

square

#63CBEB #C763EB #EB8363 #87EB63

split-complementary

#63CBEB #EB6387 #EBC763

monochromatic

#1895BC #2DB9E4 #63CBEB #99DDF2 #CFEFF9

Accessibility & contrast

On white

1.86

#63CBEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.27

#63CBEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CBEB

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CBEB	#FFFFFF	#000000	##000000
##63CBEB	1.00	1.86	11.27	11.27
#FFFFFF	1.86	1.00	21.00	21.00
#000000	11.27	21.00	1.00	1.00
##000000	11.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8C6ED

Deuteranopia (green-blind)

#A4B7EB

Tritanopia (blue-blind)

#00D5D5

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #63cbeb;
/* rgb */ color: rgb(99, 203, 235);
/* oklch */ color: oklch(79.2% 0.106 220.8);

Tailwind

colors: {
  custom: {
    50: '#9bdbf1',
    500: '#63cbeb',
    950: '#000000',
  },
}

SCSS

$custom: #63cbeb;
$custom-light: #9bdbf1;
$custom-dark: #000000;

JSON

{
  "hex": "#63cbeb",
  "rgb": {
    "r": 99,
    "g": 203,
    "b": 235
  },
  "hsl": {
    "h": 194.118,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.79237,
    "c": 0.10606,
    "h": 220.8
  },
  "luminance": 0.51363
}

Semantic roles & 50–950 ramp

primary

#63CBEB

secondary

#BB5638

accent

#3C0CDA

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63CBEB

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

Preview Lab → · Contrast checker → · Palette generator →