#63A8F4#63A8F4

#63A8F4 is a light, vivid cyan. Relative luminance 0.372; OKLCH L 71.8% C 0.132 H 252.2°. Best body text is #000000 at 8.44:1 contrast (WCAG AA passes).

Color values

HEX#63A8F4
RGBrgb(99, 168, 244)
HSLhsl(211, 87%, 67%)
HSVhsv(211, 59%, 96%)
CMYKcmyk(59.4%, 31.1%, 0%, 4.3%)
CIE-LABlab(67.42, 0.43, -44.48)
CIE-LCHlch(67.42, 44.49, 270.55°)
OKLaboklab(71.84% -0.0404 -0.1255)
OKLCHoklch(71.84% 0.132 252.2)
XYZxyz(35.4715, 37.1863, 90.8788)
Luminance0.3719 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63A8F4 #F4AF63
analogous
#63F1F4 #63A8F4 #6763F4
triadic
#63A8F4 #F463A8 #A8F463
tetradic
#63A8F4 #F463F1 #F4AF63 #63F467
square
#63A8F4 #F463F1 #F4AF63 #63F467
split-complementary
#63A8F4 #F46763 #F1F463
monochromatic
#0F6ACE #2A88F0 #63A8F4 #9CC8F8 #D5E8FC

Accessibility & contrast

On white

2.49
#63A8F4 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.44
#63A8F4 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A8F4
8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63A8F4#FFFFFF#000000##000000
##63A8F41.002.498.448.44
#FFFFFF2.491.0021.0021.00
#0000008.4421.001.001.00
##0000008.4421.001.001.00

Color blindness preview

Protanopia (red-blind)
#88ACF7
Deuteranopia (green-blind)
#759EF2
Tritanopia (blue-blind)
#00BAC3
Achromatopsia (no color)
#A4A4A4

Design tokens & code

CSS
--color: #63a8f4;
/* rgb */ color: rgb(99, 168, 244);
/* oklch */ color: oklch(71.8% 0.132 252.2);
Tailwind
colors: {
  custom: {
    50: '#9ac1f8',
    500: '#63a8f4',
    950: '#000000',
  },
}
SCSS
$custom: #63a8f4;
$custom-light: #9ac1f8;
$custom-dark: #000000;
JSON
{
  "hex": "#63a8f4",
  "rgb": {
    "r": 99,
    "g": 168,
    "b": 244
  },
  "hsl": {
    "h": 211.448,
    "s": 86.826,
    "l": 67.255
  },
  "oklch": {
    "l": 0.71842,
    "c": 0.13188,
    "h": 252.2
  },
  "luminance": 0.3719
}

Semantic roles & 50–950 ramp

primary
#63A8F4
secondary
#F0DBC3
accent
#7802E3
background
#FAFBFF
surface
#F3F7FF
border
#CDD0D7
text
#0F1217
muted
#7F8185

Preview Lab

Preview with #63A8F4

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

Preview Lab → · Contrast checker → · Palette generator →

#63A8F4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva