#63C3F9#63C3F9

#63C3F9 is a light, moderate cyan. Relative luminance 0.485; OKLCH L 78.0% C 0.119 H 235.8°. Best body text is #000000 at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#63C3F9
RGB	rgb(99, 195, 249)
HSL	hsl(202, 93%, 68%)
HSV	hsv(202, 60%, 98%)
CMYK	cmyk(60.2%, 21.7%, 0%, 2.4%)
CIE-LAB	lab(75.15, -12.80, -35.13)
CIE-LCH	lch(75.15, 37.39, 249.98°)
OKLab	oklab(78.02% -0.067 -0.0984)
OKLCH	oklch(78.02% 0.119 235.8)
XYZ	xyz(41.7531, 48.5183, 96.7688)
Luminance	0.4852 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C3F9 #F99963

analogous

#63F9E4 #63C3F9 #6378F9

triadic

#63C3F9 #F963C3 #C3F963

tetradic

#63C3F9 #E463F9 #F99963 #78F963

square

#63C3F9 #E463F9 #F99963 #78F963

split-complementary

#63C3F9 #F96378 #F9E463

monochromatic

#088ED9 #28ACF7 #63C3F9 #9EDAFB #D9F0FE

Accessibility & contrast

On white

1.96

#63C3F9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.70

#63C3F9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C3F9

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C3F9	#FFFFFF	#000000	##000000
##63C3F9	1.00	1.96	10.70	10.70
#FFFFFF	1.96	1.00	21.00	21.00
#000000	10.70	21.00	1.00	1.00
##000000	10.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9C2FC

Deuteranopia (green-blind)

#95B2F8

Tritanopia (blue-blind)

#00D1D5

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #63c3f9;
/* rgb */ color: rgb(99, 195, 249);
/* oklch */ color: oklch(78.0% 0.119 235.8);

Tailwind

colors: {
  custom: {
    50: '#9cd5fb',
    500: '#63c3f9',
    950: '#000000',
  },
}

SCSS

$custom: #63c3f9;
$custom-light: #9cd5fb;
$custom-dark: #000000;

JSON

{
  "hex": "#63c3f9",
  "rgb": {
    "r": 99,
    "g": 195,
    "b": 249
  },
  "hsl": {
    "h": 201.6,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.78017,
    "c": 0.119,
    "h": 235.8
  },
  "luminance": 0.48522
}

Semantic roles & 50–950 ramp

primary

#63C3F9

secondary

#F3D6C5

accent

#5300E6

background

#FAFDFF

surface

#F4FAFF

border

#CED3D7

text

#0F1417

muted

#7F8385

Preview Lab

Preview with #63C3F9

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

Preview Lab → · Contrast checker → · Palette generator →