#63D1FD#63D1FD

#63D1FD is a light, moderate cyan. Relative luminance 0.553; OKLCH L 81.3% C 0.118 H 227.2°. Best body text is #000000 at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#63D1FD
RGB	rgb(99, 209, 253)
HSL	hsl(197, 97%, 69%)
HSV	hsv(197, 61%, 99%)
CMYK	cmyk(60.9%, 17.4%, 0%, 0.8%)
CIE-LAB	lab(79.24, -18.89, -30.97)
CIE-LCH	lch(79.24, 36.27, 238.62°)
OKLab	oklab(81.32% -0.08 -0.0864)
OKLCH	oklch(81.32% 0.118 227.2)
XYZ	xyz(45.6687, 55.3408, 101.1845)
Luminance	0.5534 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D1FD #FD8F63

analogous

#63FDDC #63D1FD #6384FD

triadic

#63D1FD #FD63D1 #D1FD63

tetradic

#63D1FD #DC63FD #FD8F63 #84FD63

square

#63D1FD #DC63FD #FD8F63 #84FD63

split-complementary

#63D1FD #FD6384 #FDDC63

monochromatic

#03A3E3 #27BFFC #63D1FD #9FE3FE #DCF5FF

Accessibility & contrast

On white

1.74

#63D1FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.07

#63D1FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D1FD

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D1FD	#FFFFFF	#000000	##000000
##63D1FD	1.00	1.74	12.07	12.07
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.07	21.00	1.00	1.00
##000000	12.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BACDFF

Deuteranopia (green-blind)

#A4BDFC

Tritanopia (blue-blind)

#00DEDF

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #63d1fd;
/* rgb */ color: rgb(99, 209, 253);
/* oklch */ color: oklch(81.3% 0.118 227.2);

Tailwind

colors: {
  custom: {
    50: '#9ddffe',
    500: '#63d1fd',
    950: '#000000',
  },
}

SCSS

$custom: #63d1fd;
$custom-light: #9ddffe;
$custom-dark: #000000;

JSON

{
  "hex": "#63d1fd",
  "rgb": {
    "r": 99,
    "g": 209,
    "b": 253
  },
  "hsl": {
    "h": 197.143,
    "s": 97.468,
    "l": 69.02
  },
  "oklch": {
    "l": 0.8132,
    "c": 0.11775,
    "h": 227.2
  },
  "luminance": 0.55345
}

Semantic roles & 50–950 ramp

primary

#63D1FD

secondary

#D75E2D

accent

#4200E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D1FD

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

Preview Lab → · Contrast checker → · Palette generator →