#63B7DD#63B7DD

#63B7DD is a light, moderate cyan. Relative luminance 0.417; OKLCH L 74.1% C 0.098 H 229.5°. Best body text is #000000 at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#63B7DD
RGB	rgb(99, 183, 221)
HSL	hsl(199, 64%, 63%)
HSV	hsv(199, 55%, 87%)
CMYK	cmyk(55.2%, 17.2%, 0%, 13.3%)
CIE-LAB	lab(70.69, -14.85, -26.85)
CIE-LCH	lch(70.69, 30.68, 241.05°)
OKLab	oklab(74.12% -0.0639 -0.0747)
OKLCH	oklch(74.12% 0.098 229.5)
XYZ	xyz(35.1253, 41.7369, 74.5976)
Luminance	0.4174 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B7DD #DD8963

analogous

#63DDC6 #63B7DD #637ADD

triadic

#63B7DD #DD63B7 #B7DD63

tetradic

#63B7DD #C663DD #DD8963 #7ADD63

square

#63B7DD #C663DD #DD8963 #7ADD63

split-complementary

#63B7DD #DD637A #DDC663

monochromatic

#237BA2 #31A0D2 #63B7DD #95CEE8 #C7E5F3

Accessibility & contrast

On white

2.25

#63B7DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.35

#63B7DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B7DD

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B7DD	#FFFFFF	#000000	##000000
##63B7DD	1.00	2.25	9.35	9.35
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.35	21.00	1.00	1.00
##000000	9.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B4DF

Deuteranopia (green-blind)

#92A7DD

Tritanopia (blue-blind)

#00C2C3

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #63b7dd;
/* rgb */ color: rgb(99, 183, 221);
/* oklch */ color: oklch(74.1% 0.098 229.5);

Tailwind

colors: {
  custom: {
    50: '#98cce7',
    500: '#63b7dd',
    950: '#000000',
  },
}

SCSS

$custom: #63b7dd;
$custom-light: #98cce7;
$custom-dark: #000000;

JSON

{
  "hex": "#63b7dd",
  "rgb": {
    "r": 99,
    "g": 183,
    "b": 221
  },
  "hsl": {
    "h": 198.689,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.74117,
    "c": 0.09831,
    "h": 229.5
  },
  "luminance": 0.4174
}

Semantic roles & 50–950 ramp

primary

#63B7DD

secondary

#E4C6B8

accent

#5119CC

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #63B7DD

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

Preview Lab → · Contrast checker → · Palette generator →