#63B3DC#63B3DC

#63B3DC is a light, moderate cyan. Relative luminance 0.401; OKLCH L 73.2% C 0.099 H 232.6°. Best body text is #000000 at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#63B3DC
RGB	rgb(99, 179, 220)
HSL	hsl(200, 63%, 63%)
HSV	hsv(200, 55%, 86%)
CMYK	cmyk(55%, 18.6%, 0%, 13.7%)
CIE-LAB	lab(69.51, -13.02, -28.11)
CIE-LCH	lch(69.51, 30.98, 245.15°)
OKLab	oklab(73.17% -0.0598 -0.0783)
OKLCH	oklch(73.17% 0.099 232.6)
XYZ	xyz(34.1791, 40.0571, 73.6269)
Luminance	0.4006 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B3DC #DC8C63

analogous

#63DCC9 #63B3DC #6376DC

triadic

#63B3DC #DC63B3 #B3DC63

tetradic

#63B3DC #C963DC #DC8C63 #76DC63

square

#63B3DC #C963DC #DC8C63 #76DC63

split-complementary

#63B3DC #DC6376 #DCC963

monochromatic

#2476A1 #319BD1 #63B3DC #95CBE7 #C7E4F2

Accessibility & contrast

On white

2.33

#63B3DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.01

#63B3DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B3DC

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B3DC	#FFFFFF	#000000	##000000
##63B3DC	1.00	2.33	9.01	9.01
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.01	21.00	1.00	1.00
##000000	9.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB1DE

Deuteranopia (green-blind)

#8EA4DB

Tritanopia (blue-blind)

#00BEC0

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63b3dc;
/* rgb */ color: rgb(99, 179, 220);
/* oklch */ color: oklch(73.2% 0.099 232.6);

Tailwind

colors: {
  custom: {
    50: '#98c9e7',
    500: '#63b3dc',
    950: '#000000',
  },
}

SCSS

$custom: #63b3dc;
$custom-light: #98c9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#63b3dc",
  "rgb": {
    "r": 99,
    "g": 179,
    "b": 220
  },
  "hsl": {
    "h": 200.331,
    "s": 63.351,
    "l": 62.549
  },
  "oklch": {
    "l": 0.73167,
    "c": 0.09856,
    "h": 232.6
  },
  "luminance": 0.4006
}

Semantic roles & 50–950 ramp

primary

#63B3DC

secondary

#E3C6B7

accent

#561ACB

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #63B3DC

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

Preview Lab → · Contrast checker → · Palette generator →