#63D3EC#63D3EC

#63D3EC is a light, moderate cyan. Relative luminance 0.553; OKLCH L 81.1% C 0.107 H 214.6°. Best body text is #000000 at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#63D3EC
RGB	rgb(99, 211, 236)
HSL	hsl(191, 78%, 66%)
HSV	hsv(191, 58%, 93%)
CMYK	cmyk(58.1%, 10.6%, 0%, 7.5%)
CIE-LAB	lab(79.21, -24.85, -21.94)
CIE-LCH	lch(79.21, 33.15, 221.44°)
OKLab	oklab(81.1% -0.0883 -0.0608)
OKLCH	oklch(81.1% 0.107 214.6)
XYZ	xyz(43.5741, 55.2930, 87.7169)
Luminance	0.5530 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D3EC #EC7C63

analogous

#63ECC0 #63D3EC #638EEC

triadic

#63D3EC #EC63D3 #D3EC63

tetradic

#63D3EC #C063EC #EC7C63 #8EEC63

square

#63D3EC #C063EC #EC7C63 #8EEC63

split-complementary

#63D3EC #EC638E #ECC063

monochromatic

#179FBE #2CC4E5 #63D3EC #9AE2F3 #D0F2F9

Accessibility & contrast

On white

1.74

#63D3EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.06

#63D3EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D3EC

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D3EC	#FFFFFF	#000000	##000000
##63D3EC	1.00	1.74	12.06	12.06
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.06	21.00	1.00	1.00
##000000	12.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1CDED

Deuteranopia (green-blind)

#ADBEEC

Tritanopia (blue-blind)

#00DDDB

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #63d3ec;
/* rgb */ color: rgb(99, 211, 236);
/* oklch */ color: oklch(81.1% 0.107 214.6);

Tailwind

colors: {
  custom: {
    50: '#9be0f2',
    500: '#63d3ec',
    950: '#000000',
  },
}

SCSS

$custom: #63d3ec;
$custom-light: #9be0f2;
$custom-dark: #000000;

JSON

{
  "hex": "#63d3ec",
  "rgb": {
    "r": 99,
    "g": 211,
    "b": 236
  },
  "hsl": {
    "h": 190.949,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.81101,
    "c": 0.10728,
    "h": 214.6
  },
  "luminance": 0.55297
}

Semantic roles & 50–950 ramp

primary

#63D3EC

secondary

#BC4F37

accent

#310BDB

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63D3EC

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

Preview Lab → · Contrast checker → · Palette generator →