#63EEFB#63EEFB

#63EEFB is a very light, vivid teal. Relative luminance 0.708; OKLCH L 87.8% C 0.120 H 203.8°. Best body text is #000000 at 15.15:1 contrast (WCAG AA passes).

Color values

HEX#63EEFB
RGBrgb(99, 238, 251)
HSLhsl(185, 95%, 69%)
HSVhsv(185, 61%, 98%)
CMYKcmyk(60.6%, 5.2%, 0%, 1.6%)
CIE-LABlab(87.37, -33.69, -17.54)
CIE-LCHlch(87.37, 37.98, 207.50°)
OKLaboklab(87.82% -0.1102 -0.0486)
OKLCHoklch(87.82% 0.12 203.8)
XYZxyz(53.1253, 70.7612, 102.1066)
Luminance0.7077 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63EEFB #FB7063
analogous
#63FBBC #63EEFB #63A2FB
triadic
#63EEFB #FB63EE #EEFB63
tetradic
#63EEFB #BC63FB #FB7063 #A2FB63
square
#63EEFB #BC63FB #FB7063 #A2FB63
split-complementary
#63EEFB #FB63A2 #FBBC63
monochromatic
#06CBDE #27E7F9 #63EEFB #9FF5FD #DAFBFE

Accessibility & contrast

On white

1.39
#63EEFB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

15.15
#63EEFB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63EEFB
15.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63EEFB#FFFFFF#000000##000000
##63EEFB1.001.3915.1515.15
#FFFFFF1.391.0021.0021.00
#00000015.1521.001.001.00
##00000015.1521.001.001.00

Color blindness preview

Protanopia (red-blind)
#DDE5FC
Deuteranopia (green-blind)
#C6D4FC
Tritanopia (blue-blind)
#00F7F2
Achromatopsia (no color)
#DBDBDB

Design tokens & code

CSS
--color: #63eefb;
/* rgb */ color: rgb(99, 238, 251);
/* oklch */ color: oklch(87.8% 0.120 203.8);
Tailwind
colors: {
  custom: {
    50: '#9ef4fc',
    500: '#63eefb',
    950: '#000000',
  },
}
SCSS
$custom: #63eefb;
$custom-light: #9ef4fc;
$custom-dark: #000000;
JSON
{
  "hex": "#63eefb",
  "rgb": {
    "r": 99,
    "g": 238,
    "b": 251
  },
  "hsl": {
    "h": 185.132,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.87823,
    "c": 0.12043,
    "h": 203.8
  },
  "luminance": 0.70767
}

Semantic roles & 50–950 ramp

primary
#63EEFB
secondary
#D53C2D
accent
#1400E6
background
#FDFFFF
surface
#F7FEFF
border
#D0D6D7
text
#101717
muted
#818585

Preview Lab

Preview with #63EEFB

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

Preview Lab → · Contrast checker → · Palette generator →

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