#668DD5#668DD5

#668DD5 is a light, moderate blue. Relative luminance 0.267; OKLCH L 64.6% C 0.117 H 262.0°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX#668DD5
RGBrgb(102, 141, 213)
HSLhsl(219, 57%, 62%)
HSVhsv(219, 52%, 84%)
CMYKcmyk(52.1%, 33.8%, 0%, 16.5%)
CIE-LABlab(58.67, 6.86, -41.08)
CIE-LCHlch(58.67, 41.65, 279.48°)
OKLaboklab(64.58% -0.0163 -0.1158)
OKLCHoklch(64.58% 0.117 262)
XYZxyz(27.0106, 26.6767, 66.6637)
Luminance0.2668 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#668DD5 #D5AE66
analogous
#66C5D5 #668DD5 #7766D5
triadic
#668DD5 #D5668D #8DD566
tetradic
#668DD5 #D566C5 #D5AE66 #66D577
square
#668DD5 #D566C5 #D5AE66 #66D577
split-complementary
#668DD5 #D57766 #C5D566
monochromatic
#295097 #3769C7 #668DD5 #96B1E2 #C6D5EF

Accessibility & contrast

On white

3.31
#668DD5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.34
#668DD5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668DD5
6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##668DD5#FFFFFF#000000##000000
##668DD51.003.316.346.34
#FFFFFF3.311.0021.0021.00
#0000006.3421.001.001.00
##0000006.3421.001.001.00

Color blindness preview

Protanopia (red-blind)
#7193D8
Deuteranopia (green-blind)
#6488D3
Tritanopia (blue-blind)
#2E9DA7
Achromatopsia (no color)
#8D8D8D

Design tokens & code

CSS
--color: #668dd5;
/* rgb */ color: rgb(102, 141, 213);
/* oklch */ color: oklch(64.6% 0.117 262.0);
Tailwind
colors: {
  custom: {
    50: '#98aee2',
    500: '#668dd5',
    950: '#000000',
  },
}
SCSS
$custom: #668dd5;
$custom-light: #98aee2;
$custom-dark: #000000;
JSON
{
  "hex": "#668dd5",
  "rgb": {
    "r": 102,
    "g": 141,
    "b": 213
  },
  "hsl": {
    "h": 218.919,
    "s": 56.923,
    "l": 61.765
  },
  "oklch": {
    "l": 0.64581,
    "c": 0.11696,
    "h": 262
  },
  "luminance": 0.26679
}

Semantic roles & 50–950 ramp

primary
#668DD5
secondary
#E0D2B7
accent
#8B21C4
background
#F9FAFD
surface
#F2F4FB
border
#CCCED4
text
#0E1015
muted
#7E7F83

Preview Lab

Preview with #668DD5

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

Preview Lab → · Contrast checker → · Palette generator →

#668DD5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva