#63B0F0#63B0F0

#63B0F0 is a light, vivid cyan. Relative luminance 0.400; OKLCH L 73.4% C 0.121 H 245.6°. Best body text is #000000 at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#63B0F0
RGB	rgb(99, 176, 240)
HSL	hsl(207, 82%, 66%)
HSV	hsv(207, 59%, 94%)
CMYK	cmyk(58.8%, 26.7%, 0%, 5.9%)
CIE-LAB	lab(69.46, -5.30, -39.10)
CIE-LCH	lch(69.46, 39.46, 262.28°)
OKLab	oklab(73.39% -0.05 -0.1099)
OKLCH	oklch(73.39% 0.121 245.6)
XYZ	xyz(36.3933, 39.9912, 88.2224)
Luminance	0.4000 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B0F0 #F0A363

analogous

#63F0EA #63B0F0 #636AF0

triadic

#63B0F0 #F063B0 #B0F063

tetradic

#63B0F0 #EA63F0 #F0A363 #6AF063

square

#63B0F0 #EA63F0 #F0A363 #6AF063

split-complementary

#63B0F0 #F0636A #F0EA63

monochromatic

#1375C6 #2B94EB #63B0F0 #9BCCF5 #D3E9FB

Accessibility & contrast

On white

2.33

#63B0F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.00

#63B0F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B0F0

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B0F0	#FFFFFF	#000000	##000000
##63B0F0	1.00	2.33	9.00	9.00
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.00	21.00	1.00	1.00
##000000	9.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94B1F3

Deuteranopia (green-blind)

#81A3EF

Tritanopia (blue-blind)

#00BFC6

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #63b0f0;
/* rgb */ color: rgb(99, 176, 240);
/* oklch */ color: oklch(73.4% 0.121 245.6);

Tailwind

colors: {
  custom: {
    50: '#9ac7f5',
    500: '#63b0f0',
    950: '#000000',
  },
}

SCSS

$custom: #63b0f0;
$custom-light: #9ac7f5;
$custom-dark: #000000;

JSON

{
  "hex": "#63b0f0",
  "rgb": {
    "r": 99,
    "g": 176,
    "b": 240
  },
  "hsl": {
    "h": 207.234,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.73394,
    "c": 0.12072,
    "h": 245.6
  },
  "luminance": 0.39995
}

Semantic roles & 50–950 ramp

primary

#63B0F0

secondary

#EED5C1

accent

#6907DF

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B0F0

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

Preview Lab → · Contrast checker → · Palette generator →