#63A6DB#63A6DB

#63A6DB is a light, moderate cyan. Relative luminance 0.350; OKLCH L 70.2% C 0.104 H 243.9°. Best body text is #000000 at 8.01:1 contrast (WCAG AA passes).

Color values

HEX#63A6DB
RGBrgb(99, 166, 219)
HSLhsl(207, 63%, 62%)
HSVhsv(207, 55%, 86%)
CMYKcmyk(54.8%, 24.2%, 0%, 14.1%)
CIE-LABlab(65.78, -6.24, -33.33)
CIE-LCHlch(65.78, 33.91, 259.39°)
OKLaboklab(70.2% -0.0457 -0.0933)
OKLCHoklch(70.2% 0.104 243.9)
XYZxyz(31.5634, 35.0369, 72.1036)
Luminance0.3504 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63A6DB #DB9863
analogous
#63DBD4 #63A6DB #636ADB
triadic
#63A6DB #DB63A6 #A6DB63
tetradic
#63A6DB #D463DB #DB9863 #6ADB63
square
#63A6DB #D463DB #DB9863 #6ADB63
split-complementary
#63A6DB #DB636A #DBD463
monochromatic
#25699F #318AD0 #63A6DB #95C2E6 #C6DFF2

Accessibility & contrast

On white

2.62
#63A6DB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.01
#63A6DB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A6DB
8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63A6DB#FFFFFF#000000##000000
##63A6DB1.002.628.018.01
#FFFFFF2.621.0021.0021.00
#0000008.0121.001.001.00
##0000008.0121.001.001.00

Color blindness preview

Protanopia (red-blind)
#8FA7DD
Deuteranopia (green-blind)
#7F9ADA
Tritanopia (blue-blind)
#02B3B8
Achromatopsia (no color)
#A0A0A0

Design tokens & code

CSS
--color: #63a6db;
/* rgb */ color: rgb(99, 166, 219);
/* oklch */ color: oklch(70.2% 0.104 243.9);
Tailwind
colors: {
  custom: {
    50: '#97c0e6',
    500: '#63a6db',
    950: '#000000',
  },
}
SCSS
$custom: #63a6db;
$custom-light: #97c0e6;
$custom-dark: #000000;
JSON
{
  "hex": "#63a6db",
  "rgb": {
    "r": 99,
    "g": 166,
    "b": 219
  },
  "hsl": {
    "h": 206.5,
    "s": 62.5,
    "l": 62.353
  },
  "oklch": {
    "l": 0.70197,
    "c": 0.10389,
    "h": 243.9
  },
  "luminance": 0.3504
}

Semantic roles & 50–950 ramp

primary
#63A6DB
secondary
#E3CAB7
accent
#691BCA
background
#F9FBFE
surface
#F2F7FC
border
#CCD0D5
text
#0E1216
muted
#7E8184

Preview Lab

Preview with #63A6DB

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

Preview Lab → · Contrast checker → · Palette generator →

#63A6DB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva