#63ACFD#63ACFD

#63ACFD is a light, vivid cyan. Relative luminance 0.393; OKLCH L 73.2% C 0.139 H 252.4°. Best body text is #000000 at 8.85:1 contrast (WCAG AA passes).

Color values

HEX#63ACFD
RGBrgb(99, 172, 253)
HSLhsl(212, 97%, 69%)
HSVhsv(212, 61%, 99%)
CMYKcmyk(60.9%, 32%, 0%, 0.8%)
CIE-LABlab(68.93, 1.04, -47.00)
CIE-LCHlch(68.93, 47.01, 271.27°)
OKLaboklab(73.16% -0.0421 -0.1328)
OKLCHoklch(73.16% 0.139 252.4)
XYZxyz(37.6213, 39.2460, 98.5021)
Luminance0.3925 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63ACFD #FDB463
analogous
#63F9FD #63ACFD #6763FD
triadic
#63ACFD #FD63AC #ACFD63
tetradic
#63ACFD #FD63F9 #FDB463 #63FD67
square
#63ACFD #FD63F9 #FDB463 #63FD67
split-complementary
#63ACFD #FD6763 #F9FD63
monochromatic
#036DE3 #278CFC #63ACFD #9FCCFE #DCECFF

Accessibility & contrast

On white

2.37
#63ACFD on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.85
#63ACFD on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ACFD
8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63ACFD#FFFFFF#000000##000000
##63ACFD1.002.378.858.85
#FFFFFF2.371.0021.0021.00
#0000008.8521.001.001.00
##0000008.8521.001.001.00

Color blindness preview

Protanopia (red-blind)
#89B0FF
Deuteranopia (green-blind)
#75A2FB
Tritanopia (blue-blind)
#00BFC9
Achromatopsia (no color)
#A8A8A8

Design tokens & code

CSS
--color: #63acfd;
/* rgb */ color: rgb(99, 172, 253);
/* oklch */ color: oklch(73.2% 0.139 252.4);
Tailwind
colors: {
  custom: {
    50: '#9cc4fe',
    500: '#63acfd',
    950: '#000000',
  },
}
SCSS
$custom: #63acfd;
$custom-light: #9cc4fe;
$custom-dark: #000000;
JSON
{
  "hex": "#63acfd",
  "rgb": {
    "r": 99,
    "g": 172,
    "b": 253
  },
  "hsl": {
    "h": 211.558,
    "s": 97.468,
    "l": 69.02
  },
  "oklch": {
    "l": 0.73163,
    "c": 0.13935,
    "h": 252.4
  },
  "luminance": 0.3925
}

Semantic roles & 50–950 ramp

primary
#63ACFD
secondary
#F4DFC7
accent
#7900E6
background
#FAFCFF
surface
#F4F8FF
border
#CED1D7
text
#0F1218
muted
#7F8186

Preview Lab

Preview with #63ACFD

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

Preview Lab → · Contrast checker → · Palette generator →

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