#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
RGBrgb(99, 176, 240)
HSLhsl(207, 82%, 66%)
HSVhsv(207, 59%, 94%)
CMYKcmyk(58.8%, 26.7%, 0%, 5.9%)
CIE-LABlab(69.46, -5.30, -39.10)
CIE-LCHlch(69.46, 39.46, 262.28°)
OKLaboklab(73.39% -0.05 -0.1099)
OKLCHoklch(73.39% 0.121 245.6)
XYZxyz(36.3933, 39.9912, 88.2224)
Luminance0.4000 (WCAG relative)
Temperaturecool
Familycyan

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
##63B0F01.002.339.009.00
#FFFFFF2.331.0021.0021.00
#0000009.0021.001.001.00
##0000009.0021.001.001.00

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 →

#63B0F0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva