#63BCE0#63BCE0

#63BCE0 is a light, moderate cyan. Relative luminance 0.440; OKLCH L 75.4% C 0.100 H 226.8°. Best body text is #000000 at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#63BCE0
RGB	rgb(99, 188, 224)
HSL	hsl(197, 67%, 63%)
HSV	hsv(197, 56%, 88%)
CMYK	cmyk(55.8%, 16.1%, 0%, 12.2%)
CIE-LAB	lab(72.23, -16.60, -26.13)
CIE-LCH	lch(72.23, 30.95, 237.57°)
OKLab	oklab(75.38% -0.0683 -0.0727)
OKLCH	oklch(75.38% 0.1 226.8)
XYZ	xyz(36.5782, 43.9975, 77.0713)
Luminance	0.4400 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BCE0 #E08763

analogous

#63E0C5 #63BCE0 #637DE0

triadic

#63BCE0 #E063BC #BCE063

tetradic

#63BCE0 #C563E0 #E08763 #7DE063

square

#63BCE0 #C563E0 #E08763 #7DE063

split-complementary

#63BCE0 #E0637D #E0C563

monochromatic

#2181A7 #30A6D6 #63BCE0 #96D2EA #C9E8F4

Accessibility & contrast

On white

2.14

#63BCE0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.80

#63BCE0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BCE0

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BCE0	#FFFFFF	#000000	##000000
##63BCE0	1.00	2.14	9.80	9.80
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.80	21.00	1.00	1.00
##000000	9.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B9E2

Deuteranopia (green-blind)

#97ABE0

Tritanopia (blue-blind)

#00C7C8

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #63bce0;
/* rgb */ color: rgb(99, 188, 224);
/* oklch */ color: oklch(75.4% 0.100 226.8);

Tailwind

colors: {
  custom: {
    50: '#99d0e9',
    500: '#63bce0',
    950: '#000000',
  },
}

SCSS

$custom: #63bce0;
$custom-light: #99d0e9;
$custom-dark: #000000;

JSON

{
  "hex": "#63bce0",
  "rgb": {
    "r": 99,
    "g": 188,
    "b": 224
  },
  "hsl": {
    "h": 197.28,
    "s": 66.845,
    "l": 63.333
  },
  "oklch": {
    "l": 0.75379,
    "c": 0.09971,
    "h": 226.8
  },
  "luminance": 0.44001
}

Semantic roles & 50–950 ramp

primary

#63BCE0

secondary

#E6C6B9

accent

#4C17CF

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0F1416

muted

#7E8284

Preview Lab

Preview with #63BCE0

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

Preview Lab → · Contrast checker → · Palette generator →