#63CEEB#63CEEB

#63CEEB is a light, moderate cyan. Relative luminance 0.528; OKLCH L 79.9% C 0.106 H 218.2°. Best body text is #000000 at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#63CEEB
RGB	rgb(99, 206, 235)
HSL	hsl(193, 77%, 65%)
HSV	hsv(193, 58%, 92%)
CMYK	cmyk(57.9%, 12.3%, 0%, 7.8%)
CIE-LAB	lab(77.75, -22.64, -23.63)
CIE-LCH	lch(77.75, 32.72, 226.23°)
OKLab	oklab(79.92% -0.0835 -0.0656)
OKLCH	oklch(79.92% 0.106 218.2)
XYZ	xyz(42.2063, 52.7893, 86.5462)
Luminance	0.5279 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CEEB #EB8063

analogous

#63EBC4 #63CEEB #638AEB

triadic

#63CEEB #EB63CE #CEEB63

tetradic

#63CEEB #C463EB #EB8063 #8AEB63

square

#63CEEB #C463EB #EB8063 #8AEB63

split-complementary

#63CEEB #EB638A #EBC463

monochromatic

#1899BC #2DBDE4 #63CEEB #99DFF2 #CFF0F9

Accessibility & contrast

On white

1.82

#63CEEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.56

#63CEEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CEEB

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CEEB	#FFFFFF	#000000	##000000
##63CEEB	1.00	1.82	11.56	11.56
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.56	21.00	1.00	1.00
##000000	11.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBC9ED

Deuteranopia (green-blind)

#A7BAEB

Tritanopia (blue-blind)

#00D8D7

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #63ceeb;
/* rgb */ color: rgb(99, 206, 235);
/* oklch */ color: oklch(79.9% 0.106 218.2);

Tailwind

colors: {
  custom: {
    50: '#9bddf1',
    500: '#63ceeb',
    950: '#000000',
  },
}

SCSS

$custom: #63ceeb;
$custom-light: #9bddf1;
$custom-dark: #000000;

JSON

{
  "hex": "#63ceeb",
  "rgb": {
    "r": 99,
    "g": 206,
    "b": 235
  },
  "hsl": {
    "h": 192.794,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.79921,
    "c": 0.10616,
    "h": 218.2
  },
  "luminance": 0.52793
}

Semantic roles & 50–950 ramp

primary

#63CEEB

secondary

#BB5438

accent

#380CDA

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63CEEB

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

Preview Lab → · Contrast checker → · Palette generator →