#63ACF0#63ACF0

#63ACF0 is a light, vivid cyan. Relative luminance 0.384; OKLCH L 72.5% C 0.124 H 248.3°. Best body text is #000000 at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#63ACF0
RGB	rgb(99, 172, 240)
HSL	hsl(209, 82%, 66%)
HSV	hsv(209, 59%, 94%)
CMYK	cmyk(58.8%, 28.3%, 0%, 5.9%)
CIE-LAB	lab(68.35, -3.08, -40.84)
CIE-LCH	lch(68.35, 40.96, 265.69°)
OKLab	oklab(72.52% -0.0457 -0.115)
OKLCH	oklch(72.52% 0.124 248.3)
XYZ	xyz(35.6206, 38.4457, 87.9648)
Luminance	0.3845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63ACF0 #F0A763

analogous

#63F0ED #63ACF0 #6366F0

triadic

#63ACF0 #F063AC #ACF063

tetradic

#63ACF0 #ED63F0 #F0A763 #66F063

square

#63ACF0 #ED63F0 #F0A763 #66F063

split-complementary

#63ACF0 #F06366 #F0ED63

monochromatic

#136FC6 #2B8EEB #63ACF0 #9BCAF5 #D3E7FB

Accessibility & contrast

On white

2.42

#63ACF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.69

#63ACF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ACF0

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63ACF0	#FFFFFF	#000000	##000000
##63ACF0	1.00	2.42	8.69	8.69
#FFFFFF	2.42	1.00	21.00	21.00
#000000	8.69	21.00	1.00	1.00
##000000	8.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FAEF3

Deuteranopia (green-blind)

#7CA0EF

Tritanopia (blue-blind)

#00BCC4

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #63acf0;
/* rgb */ color: rgb(99, 172, 240);
/* oklch */ color: oklch(72.5% 0.124 248.3);

Tailwind

colors: {
  custom: {
    50: '#9ac4f5',
    500: '#63acf0',
    950: '#000000',
  },
}

SCSS

$custom: #63acf0;
$custom-light: #9ac4f5;
$custom-dark: #000000;

JSON

{
  "hex": "#63acf0",
  "rgb": {
    "r": 99,
    "g": 172,
    "b": 240
  },
  "hsl": {
    "h": 208.936,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.72515,
    "c": 0.12372,
    "h": 248.3
  },
  "luminance": 0.38449
}

Semantic roles & 50–950 ramp

primary

#63ACF0

secondary

#EED7C1

accent

#6F07DF

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63ACF0

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

Preview Lab → · Contrast checker → · Palette generator →