#668CBF#668CBF

#668CBF is a light, moderate cyan. Relative luminance 0.253; OKLCH L 63.3% C 0.088 H 256.0°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX#668CBF
RGBrgb(102, 140, 191)
HSLhsl(214, 41%, 57%)
HSVhsv(214, 47%, 75%)
CMYKcmyk(46.6%, 26.7%, 0%, 25.1%)
CIE-LABlab(57.41, 0.75, -30.66)
CIE-LCHlch(57.41, 30.67, 271.41°)
OKLaboklab(63.27% -0.0214 -0.0857)
OKLCHoklch(63.27% 0.088 256)
XYZxyz(24.2584, 25.3409, 52.8931)
Luminance0.2534 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#668CBF #BF9966
analogous
#66B9BF #668CBF #6C66BF
triadic
#668CBF #BF668C #8CBF66
tetradic
#668CBF #BF66B9 #BF9966 #66BF6C
square
#668CBF #BF66B9 #BF9966 #66BF6C
split-complementary
#668CBF #BF6C66 #B9BF66
monochromatic
#325078 #446DA3 #668CBF #91ACD1 #BCCDE3

Accessibility & contrast

On white

3.46
#668CBF on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.07
#668CBF on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668CBF
6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##668CBF#FFFFFF#000000##000000
##668CBF1.003.466.076.07
#FFFFFF3.461.0021.0021.00
#0000006.0721.001.001.00
##0000006.0721.001.001.00

Color blindness preview

Protanopia (red-blind)
#798FC1
Deuteranopia (green-blind)
#6E86BE
Tritanopia (blue-blind)
#41979E
Achromatopsia (no color)
#8A8A8A

Design tokens & code

CSS
--color: #668cbf;
/* rgb */ color: rgb(102, 140, 191);
/* oklch */ color: oklch(63.3% 0.088 256.0);
Tailwind
colors: {
  custom: {
    50: '#96add2',
    500: '#668cbf',
    950: '#000000',
  },
}
SCSS
$custom: #668cbf;
$custom-light: #96add2;
$custom-dark: #000000;
JSON
{
  "hex": "#668cbf",
  "rgb": {
    "r": 102,
    "g": 140,
    "b": 191
  },
  "hsl": {
    "h": 214.382,
    "s": 41.014,
    "l": 57.451
  },
  "oklch": {
    "l": 0.63266,
    "c": 0.08828,
    "h": 256
  },
  "luminance": 0.25343
}

Semantic roles & 50–950 ramp

primary
#668CBF
secondary
#D2C3AE
accent
#9D57D1
background
#F9FAFC
surface
#F2F4F9
border
#CCCED2
text
#0E1014
muted
#7E7F82

Preview Lab

Preview with #668CBF

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

Preview Lab → · Contrast checker → · Palette generator →

#668CBF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva