#63D1FB#63D1FB

#63D1FB is a light, moderate cyan. Relative luminance 0.552; OKLCH L 81.2% C 0.116 H 226.0°. Best body text is #000000 at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#63D1FB
RGB	rgb(99, 209, 251)
HSL	hsl(197, 95%, 69%)
HSV	hsv(197, 61%, 98%)
CMYK	cmyk(60.6%, 16.7%, 0%, 1.6%)
CIE-LAB	lab(79.16, -19.48, -30.02)
CIE-LCH	lch(79.16, 35.78, 237.02°)
OKLab	oklab(81.24% -0.0807 -0.0837)
OKLCH	oklch(81.24% 0.116 226)
XYZ	xyz(45.3518, 55.2141, 99.5154)
Luminance	0.5522 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D1FB #FB8D63

analogous

#63FBD9 #63D1FB #6385FB

triadic

#63D1FB #FB63D1 #D1FB63

tetradic

#63D1FB #D963FB #FB8D63 #85FB63

square

#63D1FB #D963FB #FB8D63 #85FB63

split-complementary

#63D1FB #FB6385 #FBD963

monochromatic

#06A2DE #27BFF9 #63D1FB #9FE3FD #DAF4FE

Accessibility & contrast

On white

1.74

#63D1FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.04

#63D1FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D1FB

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D1FB	#FFFFFF	#000000	##000000
##63D1FB	1.00	1.74	12.04	12.04
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.04	21.00	1.00	1.00
##000000	12.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BACDFD

Deuteranopia (green-blind)

#A5BDFB

Tritanopia (blue-blind)

#00DDDF

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #63d1fb;
/* rgb */ color: rgb(99, 209, 251);
/* oklch */ color: oklch(81.2% 0.116 226.0);

Tailwind

colors: {
  custom: {
    50: '#9cdffc',
    500: '#63d1fb',
    950: '#000000',
  },
}

SCSS

$custom: #63d1fb;
$custom-light: #9cdffc;
$custom-dark: #000000;

JSON

{
  "hex": "#63d1fb",
  "rgb": {
    "r": 99,
    "g": 209,
    "b": 251
  },
  "hsl": {
    "h": 196.579,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.81238,
    "c": 0.11627,
    "h": 226
  },
  "luminance": 0.55219
}

Semantic roles & 50–950 ramp

primary

#63D1FB

secondary

#D55C2D

accent

#3F00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D1FB

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

Preview Lab → · Contrast checker → · Palette generator →