#63C3FD#63C3FD

#63C3FD is a light, vivid cyan. Relative luminance 0.488; OKLCH L 78.2% C 0.123 H 237.7°. Best body text is #000000 at 10.76:1 contrast (WCAG AA passes).

Color values

HEX	#63C3FD
RGB	rgb(99, 195, 253)
HSL	hsl(203, 97%, 69%)
HSV	hsv(203, 61%, 99%)
CMYK	cmyk(60.9%, 22.9%, 0%, 0.8%)
CIE-LAB	lab(75.31, -11.58, -37.04)
CIE-LCH	lch(75.31, 38.80, 252.64°)
OKLab	oklab(78.19% -0.0656 -0.1038)
OKLCH	oklch(78.19% 0.123 237.7)
XYZ	xyz(42.3836, 48.7706, 100.0895)
Luminance	0.4878 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C3FD #FD9D63

analogous

#63FDEA #63C3FD #6376FD

triadic

#63C3FD #FD63C3 #C3FD63

tetradic

#63C3FD #EA63FD #FD9D63 #76FD63

square

#63C3FD #EA63FD #FD9D63 #76FD63

split-complementary

#63C3FD #FD6376 #FDEA63

monochromatic

#038EE3 #27ACFC #63C3FD #9FDAFE #DCF1FF

Accessibility & contrast

On white

1.95

#63C3FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.76

#63C3FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C3FD

10.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C3FD	#FFFFFF	#000000	##000000
##63C3FD	1.00	1.95	10.76	10.76
#FFFFFF	1.95	1.00	21.00	21.00
#000000	10.76	21.00	1.00	1.00
##000000	10.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8C2FF

Deuteranopia (green-blind)

#93B3FC

Tritanopia (blue-blind)

#00D2D7

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #63c3fd;
/* rgb */ color: rgb(99, 195, 253);
/* oklch */ color: oklch(78.2% 0.123 237.7);

Tailwind

colors: {
  custom: {
    50: '#9cd5fe',
    500: '#63c3fd',
    950: '#000000',
  },
}

SCSS

$custom: #63c3fd;
$custom-light: #9cd5fe;
$custom-dark: #000000;

JSON

{
  "hex": "#63c3fd",
  "rgb": {
    "r": 99,
    "g": 195,
    "b": 253
  },
  "hsl": {
    "h": 202.597,
    "s": 97.468,
    "l": 69.02
  },
  "oklch": {
    "l": 0.78194,
    "c": 0.12284,
    "h": 237.7
  },
  "luminance": 0.48775
}

Semantic roles & 50–950 ramp

primary

#63C3FD

secondary

#F4D8C7

accent

#5600E6

background

#FAFDFF

surface

#F4FAFF

border

#CED3D7

text

#0F1417

muted

#7F8385

Preview Lab

Preview with #63C3FD

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

Preview Lab → · Contrast checker → · Palette generator →