#63B8DC#63B8DC

#63B8DC is a light, moderate cyan. Relative luminance 0.421; OKLCH L 74.3% C 0.097 H 227.8°. Best body text is #000000 at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#63B8DC
RGB	rgb(99, 184, 220)
HSL	hsl(198, 63%, 63%)
HSV	hsv(198, 55%, 86%)
CMYK	cmyk(55%, 16.4%, 0%, 13.7%)
CIE-LAB	lab(70.94, -15.67, -25.92)
CIE-LCH	lch(70.94, 30.29, 238.84°)
OKLab	oklab(74.3% -0.0653 -0.0721)
OKLCH	oklch(74.3% 0.097 227.8)
XYZ	xyz(35.1994, 42.0978, 73.9670)
Luminance	0.4210 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B8DC #DC8763

analogous

#63DCC3 #63B8DC #637CDC

triadic

#63B8DC #DC63B8 #B8DC63

tetradic

#63B8DC #C363DC #DC8763 #7CDC63

square

#63B8DC #C363DC #DC8763 #7CDC63

split-complementary

#63B8DC #DC637C #DCC363

monochromatic

#247CA1 #31A1D1 #63B8DC #95CFE7 #C7E5F2

Accessibility & contrast

On white

2.23

#63B8DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.42

#63B8DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B8DC

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B8DC	#FFFFFF	#000000	##000000
##63B8DC	1.00	2.23	9.42	9.42
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.42	21.00	1.00	1.00
##000000	9.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B5DE

Deuteranopia (green-blind)

#94A8DC

Tritanopia (blue-blind)

#00C2C4

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #63b8dc;
/* rgb */ color: rgb(99, 184, 220);
/* oklch */ color: oklch(74.3% 0.097 227.8);

Tailwind

colors: {
  custom: {
    50: '#98cde7',
    500: '#63b8dc',
    950: '#000000',
  },
}

SCSS

$custom: #63b8dc;
$custom-light: #98cde7;
$custom-dark: #000000;

JSON

{
  "hex": "#63b8dc",
  "rgb": {
    "r": 99,
    "g": 184,
    "b": 220
  },
  "hsl": {
    "h": 197.851,
    "s": 63.351,
    "l": 62.549
  },
  "oklch": {
    "l": 0.74304,
    "c": 0.09729,
    "h": 227.8
  },
  "luminance": 0.42101
}

Semantic roles & 50–950 ramp

primary

#63B8DC

secondary

#E3C4B7

accent

#4F1ACB

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #63B8DC

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

Preview Lab → · Contrast checker → · Palette generator →