#63D4EC#63D4EC

#63D4EC is a light, moderate cyan. Relative luminance 0.558; OKLCH L 81.3% C 0.107 H 213.7°. Best body text is #000000 at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#63D4EC
RGB	rgb(99, 212, 236)
HSL	hsl(191, 78%, 66%)
HSV	hsv(191, 58%, 93%)
CMYK	cmyk(58.1%, 10.2%, 0%, 7.5%)
CIE-LAB	lab(79.50, -25.35, -21.51)
CIE-LCH	lch(79.50, 33.24, 220.32°)
OKLab	oklab(81.33% -0.0894 -0.0596)
OKLCH	oklch(81.33% 0.107 213.7)
XYZ	xyz(43.8233, 55.7914, 87.7999)
Luminance	0.5580 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D4EC #EC7B63

analogous

#63ECBF #63D4EC #638FEC

triadic

#63D4EC #EC63D4 #D4EC63

tetradic

#63D4EC #BF63EC #EC7B63 #8FEC63

square

#63D4EC #BF63EC #EC7B63 #8FEC63

split-complementary

#63D4EC #EC638F #ECBF63

monochromatic

#17A0BE #2CC5E5 #63D4EC #9AE3F3 #D0F2F9

Accessibility & contrast

On white

1.73

#63D4EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.16

#63D4EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D4EC

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D4EC	#FFFFFF	#000000	##000000
##63D4EC	1.00	1.73	12.16	12.16
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.16	21.00	1.00	1.00
##000000	12.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2CEED

Deuteranopia (green-blind)

#AEBEEC

Tritanopia (blue-blind)

#00DEDB

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #63d4ec;
/* rgb */ color: rgb(99, 212, 236);
/* oklch */ color: oklch(81.3% 0.107 213.7);

Tailwind

colors: {
  custom: {
    50: '#9be1f2',
    500: '#63d4ec',
    950: '#000000',
  },
}

SCSS

$custom: #63d4ec;
$custom-light: #9be1f2;
$custom-dark: #000000;

JSON

{
  "hex": "#63d4ec",
  "rgb": {
    "r": 99,
    "g": 212,
    "b": 236
  },
  "hsl": {
    "h": 190.511,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.8133,
    "c": 0.10746,
    "h": 213.7
  },
  "luminance": 0.55796
}

Semantic roles & 50–950 ramp

primary

#63D4EC

secondary

#BC4E37

accent

#2F0BDB

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63D4EC

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

Preview Lab → · Contrast checker → · Palette generator →