#63AAFB#63AAFB

#63AAFB is a light, vivid cyan. Relative luminance 0.384; OKLCH L 72.6% C 0.139 H 253.0°. Best body text is #000000 at 8.67:1 contrast (WCAG AA passes).

Color values

HEX#63AAFB
RGBrgb(99, 170, 251)
HSLhsl(212, 95%, 69%)
HSVhsv(212, 61%, 98%)
CMYKcmyk(60.6%, 32.3%, 0%, 1.6%)
CIE-LABlab(68.29, 1.53, -46.92)
CIE-LCHlch(68.29, 46.95, 271.87°)
OKLaboklab(72.63% -0.0406 -0.1326)
OKLCHoklch(72.63% 0.139 253)
XYZxyz(36.9266, 38.3637, 96.7070)
Luminance0.3837 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63AAFB #FBB463
analogous
#63F6FB #63AAFB #6863FB
triadic
#63AAFB #FB63AA #AAFB63
tetradic
#63AAFB #FB63F6 #FBB463 #63FB68
square
#63AAFB #FB63F6 #FBB463 #63FB68
split-complementary
#63AAFB #FB6863 #F6FB63
monochromatic
#066BDE #2789F9 #63AAFB #9FCBFD #DAEBFE

Accessibility & contrast

On white

2.42
#63AAFB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.67
#63AAFB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AAFB
8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63AAFB#FFFFFF#000000##000000
##63AAFB1.002.428.678.67
#FFFFFF2.421.0021.0021.00
#0000008.6721.001.001.00
##0000008.6721.001.001.00

Color blindness preview

Protanopia (red-blind)
#88AFFE
Deuteranopia (green-blind)
#73A0F9
Tritanopia (blue-blind)
#00BDC7
Achromatopsia (no color)
#A6A6A6

Design tokens & code

CSS
--color: #63aafb;
/* rgb */ color: rgb(99, 170, 251);
/* oklch */ color: oklch(72.6% 0.139 253.0);
Tailwind
colors: {
  custom: {
    50: '#9bc3fd',
    500: '#63aafb',
    950: '#000000',
  },
}
SCSS
$custom: #63aafb;
$custom-light: #9bc3fd;
$custom-dark: #000000;
JSON
{
  "hex": "#63aafb",
  "rgb": {
    "r": 99,
    "g": 170,
    "b": 251
  },
  "hsl": {
    "h": 211.974,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.7263,
    "c": 0.13871,
    "h": 253
  },
  "luminance": 0.38367
}

Semantic roles & 50–950 ramp

primary
#63AAFB
secondary
#F4DEC6
accent
#7A00E6
background
#FAFBFF
surface
#F4F7FF
border
#CED0D7
text
#0F1217
muted
#7F8185

Preview Lab

Preview with #63AAFB

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

Preview Lab → · Contrast checker → · Palette generator →

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