#63BBDD#63BBDD

#63BBDD is a light, moderate cyan. Relative luminance 0.434; OKLCH L 75.0% C 0.098 H 225.6°. Best body text is #000000 at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#63BBDD
RGB	rgb(99, 187, 221)
HSL	hsl(197, 64%, 63%)
HSV	hsv(197, 55%, 87%)
CMYK	cmyk(55.2%, 15.4%, 0%, 13.3%)
CIE-LAB	lab(71.83, -16.95, -25.10)
CIE-LCH	lch(71.83, 30.29, 235.96°)
OKLab	oklab(75.03% -0.0683 -0.0698)
OKLCH	oklch(75.03% 0.098 225.6)
XYZ	xyz(35.9621, 43.4105, 74.8765)
Luminance	0.4341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBDD #DD8563

analogous

#63DDC2 #63BBDD #637EDD

triadic

#63BBDD #DD63BB #BBDD63

tetradic

#63BBDD #C263DD #DD8563 #7EDD63

square

#63BBDD #C263DD #DD8563 #7EDD63

split-complementary

#63BBDD #DD637E #DDC263

monochromatic

#237FA2 #31A5D2 #63BBDD #95D1E8 #C7E7F3

Accessibility & contrast

On white

2.17

#63BBDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.68

#63BBDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBDD

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBDD	#FFFFFF	#000000	##000000
##63BBDD	1.00	2.17	9.68	9.68
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.68	21.00	1.00	1.00
##000000	9.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B8DF

Deuteranopia (green-blind)

#97AADD

Tritanopia (blue-blind)

#00C5C6

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #63bbdd;
/* rgb */ color: rgb(99, 187, 221);
/* oklch */ color: oklch(75.0% 0.098 225.6);

Tailwind

colors: {
  custom: {
    50: '#98cfe7',
    500: '#63bbdd',
    950: '#000000',
  },
}

SCSS

$custom: #63bbdd;
$custom-light: #98cfe7;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbdd",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 221
  },
  "hsl": {
    "h": 196.721,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.75028,
    "c": 0.0976,
    "h": 225.6
  },
  "luminance": 0.43414
}

Semantic roles & 50–950 ramp

primary

#63BBDD

secondary

#E4C4B8

accent

#4B19CC

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #63BBDD

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

Preview Lab → · Contrast checker → · Palette generator →