#63D0EB#63D0EB

#63D0EB is a light, moderate cyan. Relative luminance 0.538; OKLCH L 80.4% C 0.106 H 216.4°. Best body text is #000000 at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#63D0EB
RGB	rgb(99, 208, 235)
HSL	hsl(192, 77%, 65%)
HSV	hsv(192, 58%, 92%)
CMYK	cmyk(57.9%, 11.5%, 0%, 7.8%)
CIE-LAB	lab(78.32, -23.64, -22.76)
CIE-LCH	lch(78.32, 32.81, 223.91°)
OKLab	oklab(80.38% -0.0856 -0.0631)
OKLCH	oklch(80.38% 0.106 216.4)
XYZ	xyz(42.6909, 53.7584, 86.7078)
Luminance	0.5376 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D0EB #EB7E63

analogous

#63EBC2 #63D0EB #638CEB

triadic

#63D0EB #EB63D0 #D0EB63

tetradic

#63D0EB #C263EB #EB7E63 #8CEB63

square

#63D0EB #C263EB #EB7E63 #8CEB63

split-complementary

#63D0EB #EB638C #EBC263

monochromatic

#189BBC #2DC0E4 #63D0EB #99E0F2 #CFF1F9

Accessibility & contrast

On white

1.79

#63D0EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.75

#63D0EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D0EB

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D0EB	#FFFFFF	#000000	##000000
##63D0EB	1.00	1.79	11.75	11.75
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.75	21.00	1.00	1.00
##000000	11.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BECAED

Deuteranopia (green-blind)

#A9BBEB

Tritanopia (blue-blind)

#00DAD8

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #63d0eb;
/* rgb */ color: rgb(99, 208, 235);
/* oklch */ color: oklch(80.4% 0.106 216.4);

Tailwind

colors: {
  custom: {
    50: '#9bdef1',
    500: '#63d0eb',
    950: '#000000',
  },
}

SCSS

$custom: #63d0eb;
$custom-light: #9bdef1;
$custom-dark: #000000;

JSON

{
  "hex": "#63d0eb",
  "rgb": {
    "r": 99,
    "g": 208,
    "b": 235
  },
  "hsl": {
    "h": 191.912,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.80377,
    "c": 0.10636,
    "h": 216.4
  },
  "luminance": 0.53763
}

Semantic roles & 50–950 ramp

primary

#63D0EB

secondary

#BB5238

accent

#350CDA

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63D0EB

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

Preview Lab → · Contrast checker → · Palette generator →