#63D5F9#63D5F9

#63D5F9 is a very light, moderate cyan. Relative luminance 0.571; OKLCH L 82.1% C 0.114 H 221.6°. Best body text is #000000 at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#63D5F9
RGB	rgb(99, 213, 249)
HSL	hsl(194, 93%, 68%)
HSV	hsv(194, 60%, 98%)
CMYK	cmyk(60.2%, 14.5%, 0%, 2.4%)
CIE-LAB	lab(80.22, -22.10, -27.33)
CIE-LCH	lch(80.22, 35.14, 231.04°)
OKLab	oklab(82.06% -0.0855 -0.0761)
OKLCH	oklch(82.06% 0.114 221.6)
XYZ	xyz(46.0319, 57.0761, 98.1950)
Luminance	0.5708 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D5F9 #F98763

analogous

#63F9D2 #63D5F9 #638AF9

triadic

#63D5F9 #F963D5 #D5F963

tetradic

#63D5F9 #D263F9 #F98763 #8AF963

square

#63D5F9 #D263F9 #F98763 #8AF963

split-complementary

#63D5F9 #F9638A #F9D263

monochromatic

#08A7D9 #28C5F7 #63D5F9 #9EE5FB #D9F5FE

Accessibility & contrast

On white

1.69

#63D5F9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.42

#63D5F9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D5F9

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D5F9	#FFFFFF	#000000	##000000
##63D5F9	1.00	1.69	12.42	12.42
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.42	21.00	1.00	1.00
##000000	12.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0D0FB

Deuteranopia (green-blind)

#AAC0F9

Tritanopia (blue-blind)

#00E1E0

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #63d5f9;
/* rgb */ color: rgb(99, 213, 249);
/* oklch */ color: oklch(82.1% 0.114 221.6);

Tailwind

colors: {
  custom: {
    50: '#9ce2fb',
    500: '#63d5f9',
    950: '#000000',
  },
}

SCSS

$custom: #63d5f9;
$custom-light: #9ce2fb;
$custom-dark: #000000;

JSON

{
  "hex": "#63d5f9",
  "rgb": {
    "r": 99,
    "g": 213,
    "b": 249
  },
  "hsl": {
    "h": 194.4,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.8206,
    "c": 0.11446,
    "h": 221.6
  },
  "luminance": 0.57081
}

Semantic roles & 50–950 ramp

primary

#63D5F9

secondary

#D2552E

accent

#3700E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D5F9

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

Preview Lab → · Contrast checker → · Palette generator →