#63CCF4#63CCF4

#63CCF4 is a light, moderate cyan. Relative luminance 0.524; OKLCH L 79.8% C 0.112 H 225.8°. Best body text is #000000 at 11.47:1 contrast (WCAG AA passes).

Color values

HEX#63CCF4
RGBrgb(99, 204, 244)
HSLhsl(197, 87%, 67%)
HSVhsv(197, 59%, 96%)
CMYKcmyk(59.4%, 16.4%, 0%, 4.3%)
CIE-LABlab(77.50, -18.99, -28.83)
CIE-LCHlch(77.50, 34.53, 236.62°)
OKLaboklab(79.82% -0.078 -0.0803)
OKLCHoklch(79.82% 0.112 225.8)
XYZxyz(43.0612, 52.3658, 93.4087)
Luminance0.5237 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63CCF4 #F48B63
analogous
#63F4D4 #63CCF4 #6383F4
triadic
#63CCF4 #F463CC #CCF463
tetradic
#63CCF4 #D463F4 #F48B63 #83F463
square
#63CCF4 #D463F4 #F48B63 #83F463
split-complementary
#63CCF4 #F46383 #F4D463
monochromatic
#0F99CE #2AB9F0 #63CCF4 #9CDFF8 #D5F1FC

Accessibility & contrast

On white

1.83
#63CCF4 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.47
#63CCF4 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CCF4
11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63CCF4#FFFFFF#000000##000000
##63CCF41.001.8311.4711.47
#FFFFFF1.831.0021.0021.00
#00000011.4721.001.001.00
##00000011.4721.001.001.00

Color blindness preview

Protanopia (red-blind)
#B6C8F6
Deuteranopia (green-blind)
#A2B9F4
Tritanopia (blue-blind)
#00D8D9
Achromatopsia (no color)
#BFBFBF

Design tokens & code

CSS
--color: #63ccf4;
/* rgb */ color: rgb(99, 204, 244);
/* oklch */ color: oklch(79.8% 0.112 225.8);
Tailwind
colors: {
  custom: {
    50: '#9bdbf7',
    500: '#63ccf4',
    950: '#000000',
  },
}
SCSS
$custom: #63ccf4;
$custom-light: #9bdbf7;
$custom-dark: #000000;
JSON
{
  "hex": "#63ccf4",
  "rgb": {
    "r": 99,
    "g": 204,
    "b": 244
  },
  "hsl": {
    "h": 196.552,
    "s": 86.826,
    "l": 67.255
  },
  "oklch": {
    "l": 0.79824,
    "c": 0.11201,
    "h": 225.8
  },
  "luminance": 0.5237
}

Semantic roles & 50–950 ramp

primary
#63CCF4
secondary
#CA5B31
accent
#4002E3
background
#FCFEFF
surface
#F6FBFE
border
#D0D4D6
text
#0F1517
muted
#808485

Preview Lab

Preview with #63CCF4

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

Preview Lab → · Contrast checker → · Palette generator →

#63CCF4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva