#63C4DB#63C4DB

#63C4DB is a light, moderate cyan. Relative luminance 0.472; OKLCH L 77.0% C 0.097 H 215.3°. Best body text is #000000 at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#63C4DB
RGB	rgb(99, 196, 219)
HSL	hsl(192, 63%, 62%)
HSV	hsv(192, 55%, 86%)
CMYK	cmyk(54.8%, 10.5%, 0%, 14.1%)
CIE-LAB	lab(74.35, -22.16, -20.18)
CIE-LCH	lch(74.35, 29.97, 222.33°)
OKLab	oklab(77.01% -0.0789 -0.0559)
OKLCH	oklch(77.01% 0.097 215.3)
XYZ	xyz(37.6667, 47.2435, 74.1380)
Luminance	0.4725 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C4DB #DB7A63

analogous

#63DBB6 #63C4DB #6388DB

triadic

#63C4DB #DB63C4 #C4DB63

tetradic

#63C4DB #B663DB #DB7A63 #88DB63

square

#63C4DB #B663DB #DB7A63 #88DB63

split-complementary

#63C4DB #DB6388 #DBB663

monochromatic

#25879F #31B1D0 #63C4DB #95D7E6 #C6EAF2

Accessibility & contrast

On white

2.01

#63C4DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.45

#63C4DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C4DB

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C4DB	#FFFFFF	#000000	##000000
##63C4DB	1.00	2.01	10.45	10.45
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.45	21.00	1.00	1.00
##000000	10.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4BFDC

Deuteranopia (green-blind)

#A2B1DB

Tritanopia (blue-blind)

#00CDCB

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #63c4db;
/* rgb */ color: rgb(99, 196, 219);
/* oklch */ color: oklch(77.0% 0.097 215.3);

Tailwind

colors: {
  custom: {
    50: '#99d6e6',
    500: '#63c4db',
    950: '#000000',
  },
}

SCSS

$custom: #63c4db;
$custom-light: #99d6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#63c4db",
  "rgb": {
    "r": 99,
    "g": 196,
    "b": 219
  },
  "hsl": {
    "h": 191.5,
    "s": 62.5,
    "l": 62.353
  },
  "oklch": {
    "l": 0.77014,
    "c": 0.09668,
    "h": 215.3
  },
  "luminance": 0.47247
}

Semantic roles & 50–950 ramp

primary

#63C4DB

secondary

#E3BFB7

accent

#3D1BCA

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0F1415

muted

#7E8384

Preview Lab

Preview with #63C4DB

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

Preview Lab → · Contrast checker → · Palette generator →