#63DBFB#63DBFB

#63DBFB is a very light, moderate cyan. Relative luminance 0.603; OKLCH L 83.5% C 0.116 H 218.1°. Best body text is #000000 at 13.06:1 contrast (WCAG AA passes).

Color values

HEX#63DBFB
RGBrgb(99, 219, 251)
HSLhsl(193, 95%, 69%)
HSVhsv(193, 61%, 98%)
CMYKcmyk(60.6%, 12.7%, 0%, 1.6%)
CIE-LABlab(81.99, -24.51, -25.69)
CIE-LCHlch(81.99, 35.51, 226.35°)
OKLaboklab(83.5% -0.0909 -0.0714)
OKLCHoklch(83.5% 0.116 218.1)
XYZxyz(47.8827, 60.2758, 100.3590)
Luminance0.6028 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63DBFB #FB8363
analogous
#63FBCF #63DBFB #638FFB
triadic
#63DBFB #FB63DB #DBFB63
tetradic
#63DBFB #CF63FB #FB8363 #8FFB63
square
#63DBFB #CF63FB #FB8363 #8FFB63
split-complementary
#63DBFB #FB638F #FBCF63
monochromatic
#06B0DE #27CDF9 #63DBFB #9FE9FD #DAF7FE

Accessibility & contrast

On white

1.61
#63DBFB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

13.06
#63DBFB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63DBFB
13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63DBFB#FFFFFF#000000##000000
##63DBFB1.001.6113.0613.06
#FFFFFF1.611.0021.0021.00
#00000013.0621.001.001.00
##00000013.0621.001.001.00

Color blindness preview

Protanopia (red-blind)
#C6D5FD
Deuteranopia (green-blind)
#B0C5FB
Tritanopia (blue-blind)
#00E6E5
Achromatopsia (no color)
#CCCCCC

Design tokens & code

CSS
--color: #63dbfb;
/* rgb */ color: rgb(99, 219, 251);
/* oklch */ color: oklch(83.5% 0.116 218.1);
Tailwind
colors: {
  custom: {
    50: '#9de6fc',
    500: '#63dbfb',
    950: '#000000',
  },
}
SCSS
$custom: #63dbfb;
$custom-light: #9de6fc;
$custom-dark: #000000;
JSON
{
  "hex": "#63dbfb",
  "rgb": {
    "r": 99,
    "g": 219,
    "b": 251
  },
  "hsl": {
    "h": 192.632,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.83497,
    "c": 0.11563,
    "h": 218.1
  },
  "luminance": 0.60281
}

Semantic roles & 50–950 ramp

primary
#63DBFB
secondary
#D5512D
accent
#3000E6
background
#FCFEFF
surface
#F6FCFF
border
#D0D5D7
text
#101617
muted
#808485

Preview Lab

Preview with #63DBFB

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

Preview Lab → · Contrast checker → · Palette generator →

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