#668FCE#668FCE

#668FCE is a light, moderate blue. Relative luminance 0.269; OKLCH L 64.7% C 0.105 H 258.7°. Best body text is #000000 at 6.39:1 contrast (WCAG AA passes).

Color values

HEX#668FCE
RGBrgb(102, 143, 206)
HSLhsl(216, 51%, 60%)
HSVhsv(216, 50%, 81%)
CMYKcmyk(50.5%, 30.6%, 0%, 19.2%)
CIE-LABlab(58.90, 3.53, -36.79)
CIE-LCHlch(58.90, 36.96, 275.48°)
OKLaboklab(64.65% -0.0206 -0.1033)
OKLCHoklch(64.65% 0.105 258.7)
XYZxyz(26.4388, 26.9240, 62.1842)
Luminance0.2693 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#668FCE #CEA566
analogous
#66C3CE #668FCE #7166CE
triadic
#668FCE #CE668F #8FCE66
tetradic
#668FCE #CE66C3 #CEA566 #66CE71
square
#668FCE #CE66C3 #CEA566 #66CE71
split-complementary
#668FCE #CE7166 #C3CE66
monochromatic
#2D538D #3C6EBB #668FCE #94B1DD #C3D3EC

Accessibility & contrast

On white

3.29
#668FCE on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.39
#668FCE on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668FCE
6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##668FCE#FFFFFF#000000##000000
##668FCE1.003.296.396.39
#FFFFFF3.291.0021.0021.00
#0000006.3921.001.001.00
##0000006.3921.001.001.00

Color blindness preview

Protanopia (red-blind)
#7793D1
Deuteranopia (green-blind)
#6A89CD
Tritanopia (blue-blind)
#359DA5
Achromatopsia (no color)
#8E8E8E

Design tokens & code

CSS
--color: #668fce;
/* rgb */ color: rgb(102, 143, 206);
/* oklch */ color: oklch(64.7% 0.105 258.7);
Tailwind
colors: {
  custom: {
    50: '#97afdd',
    500: '#668fce',
    950: '#000000',
  },
}
SCSS
$custom: #668fce;
$custom-light: #97afdd;
$custom-dark: #000000;
JSON
{
  "hex": "#668fce",
  "rgb": {
    "r": 102,
    "g": 143,
    "b": 206
  },
  "hsl": {
    "h": 216.346,
    "s": 51.485,
    "l": 60.392
  },
  "oklch": {
    "l": 0.64654,
    "c": 0.10538,
    "h": 258.7
  },
  "luminance": 0.26926
}

Semantic roles & 50–950 ramp

primary
#668FCE
secondary
#DCCCB4
accent
#8327BF
background
#F9FAFD
surface
#F2F4FB
border
#CCCED4
text
#0E1015
muted
#7E7F83

Preview Lab

Preview with #668FCE

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

Preview Lab → · Contrast checker → · Palette generator →

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