#668BDA#668BDA

#668BDA is a light, vivid blue. Relative luminance 0.264; OKLCH L 64.4% C 0.126 H 264.2°. Best body text is #000000 at 6.27:1 contrast (WCAG AA passes).

Color values

HEX#668BDA
RGBrgb(102, 139, 218)
HSLhsl(221, 61%, 63%)
HSVhsv(221, 53%, 85%)
CMYKcmyk(53.2%, 36.2%, 0%, 14.5%)
CIE-LABlab(58.37, 9.60, -44.36)
CIE-LCHlch(58.37, 45.39, 282.21°)
OKLaboklab(64.42% -0.0128 -0.1254)
OKLCHoklch(64.42% 0.126 264.2)
XYZxyz(27.3627, 26.3500, 69.9602)
Luminance0.2635 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#668BDA #DAB566
analogous
#66C5DA #668BDA #7B66DA
triadic
#668BDA #DA668B #8BDA66
tetradic
#668BDA #DA66C5 #DAB566 #66DA7B
square
#668BDA #DA66C5 #DAB566 #66DA7B
split-complementary
#668BDA #DA7B66 #C5DA66
monochromatic
#264D9F #3566CE #668BDA #97B0E6 #C9D6F2

Accessibility & contrast

On white

3.35
#668BDA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.27
#668BDA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668BDA
6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##668BDA#FFFFFF#000000##000000
##668BDA1.003.356.276.27
#FFFFFF3.351.0021.0021.00
#0000006.2721.001.001.00
##0000006.2721.001.001.00

Color blindness preview

Protanopia (red-blind)
#6B92DD
Deuteranopia (green-blind)
#5E87D8
Tritanopia (blue-blind)
#289CA8
Achromatopsia (no color)
#8C8C8C

Design tokens & code

CSS
--color: #668bda;
/* rgb */ color: rgb(102, 139, 218);
/* oklch */ color: oklch(64.4% 0.126 264.2);
Tailwind
colors: {
  custom: {
    50: '#99ace6',
    500: '#668bda',
    950: '#000000',
  },
}
SCSS
$custom: #668bda;
$custom-light: #99ace6;
$custom-dark: #000000;
JSON
{
  "hex": "#668bda",
  "rgb": {
    "r": 102,
    "g": 139,
    "b": 218
  },
  "hsl": {
    "h": 220.862,
    "s": 61.053,
    "l": 62.745
  },
  "oklch": {
    "l": 0.64423,
    "c": 0.12604,
    "h": 264.2
  },
  "luminance": 0.26352
}

Semantic roles & 50–950 ramp

primary
#668BDA
secondary
#E3D5B9
accent
#921DC9
background
#F9FAFE
surface
#F2F4FC
border
#CCCED5
text
#0E1016
muted
#7E7F84

Preview Lab

Preview with #668BDA

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

Preview Lab → · Contrast checker → · Palette generator →

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