#63ABF0#63ABF0

#63ABF0 is a light, vivid cyan. Relative luminance 0.381; OKLCH L 72.3% C 0.125 H 249.0°. Best body text is #000000 at 8.61:1 contrast (WCAG AA passes).

Color values

HEX#63ABF0
RGBrgb(99, 171, 240)
HSLhsl(209, 82%, 66%)
HSVhsv(209, 59%, 94%)
CMYKcmyk(58.8%, 28.8%, 0%, 5.9%)
CIE-LABlab(68.07, -2.52, -41.28)
CIE-LCHlch(68.07, 41.36, 266.50°)
OKLaboklab(72.3% -0.0447 -0.1162)
OKLCHoklch(72.3% 0.125 249)
XYZxyz(35.4310, 38.0665, 87.9016)
Luminance0.3807 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63ABF0 #F0A863
analogous
#63F0EF #63ABF0 #6365F0
triadic
#63ABF0 #F063AB #ABF063
tetradic
#63ABF0 #EF63F0 #F0A863 #65F063
square
#63ABF0 #EF63F0 #F0A863 #65F063
split-complementary
#63ABF0 #F06365 #F0EF63
monochromatic
#136EC6 #2B8DEB #63ABF0 #9BC9F5 #D3E7FB

Accessibility & contrast

On white

2.44
#63ABF0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.61
#63ABF0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ABF0
8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63ABF0#FFFFFF#000000##000000
##63ABF01.002.448.618.61
#FFFFFF2.441.0021.0021.00
#0000008.6121.001.001.00
##0000008.6121.001.001.00

Color blindness preview

Protanopia (red-blind)
#8EAEF3
Deuteranopia (green-blind)
#7BA0EF
Tritanopia (blue-blind)
#00BBC3
Achromatopsia (no color)
#A6A6A6

Design tokens & code

CSS
--color: #63abf0;
/* rgb */ color: rgb(99, 171, 240);
/* oklch */ color: oklch(72.3% 0.125 249.0);
Tailwind
colors: {
  custom: {
    50: '#9ac3f5',
    500: '#63abf0',
    950: '#000000',
  },
}
SCSS
$custom: #63abf0;
$custom-light: #9ac3f5;
$custom-dark: #000000;
JSON
{
  "hex": "#63abf0",
  "rgb": {
    "r": 99,
    "g": 171,
    "b": 240
  },
  "hsl": {
    "h": 209.362,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.72296,
    "c": 0.12452,
    "h": 249
  },
  "luminance": 0.3807
}

Semantic roles & 50–950 ramp

primary
#63ABF0
secondary
#EED7C1
accent
#7007DF
background
#FAFBFE
surface
#F3F7FD
border
#CDD0D5
text
#0F1217
muted
#7F8185

Preview Lab

Preview with #63ABF0

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

Preview Lab → · Contrast checker → · Palette generator →

#63ABF0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva