#668ADA#668ADA

#668ADA is a light, vivid blue. Relative luminance 0.261; OKLCH L 64.2% C 0.127 H 264.7°. Best body text is #000000 at 6.21:1 contrast (WCAG AA passes).

Color values

HEX#668ADA
RGBrgb(102, 138, 218)
HSLhsl(221, 61%, 63%)
HSVhsv(221, 53%, 85%)
CMYKcmyk(53.2%, 36.7%, 0%, 14.5%)
CIE-LABlab(58.10, 10.19, -44.79)
CIE-LCHlch(58.10, 45.94, 282.82°)
OKLaboklab(64.21% -0.0117 -0.1266)
OKLCHoklch(64.21% 0.127 264.7)
XYZxyz(27.2186, 26.0617, 69.9122)
Luminance0.2606 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#668ADA #DAB666
analogous
#66C4DA #668ADA #7C66DA
triadic
#668ADA #DA668A #8ADA66
tetradic
#668ADA #DA66C4 #DAB666 #66DA7C
square
#668ADA #DA66C4 #DAB666 #66DA7C
split-complementary
#668ADA #DA7C66 #C4DA66
monochromatic
#264C9F #3564CE #668ADA #97B0E6 #C9D5F2

Accessibility & contrast

On white

3.38
#668ADA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.21
#668ADA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668ADA
6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##668ADA#FFFFFF#000000##000000
##668ADA1.003.386.216.21
#FFFFFF3.381.0021.0021.00
#0000006.2121.001.001.00
##0000006.2121.001.001.00

Color blindness preview

Protanopia (red-blind)
#6A91DD
Deuteranopia (green-blind)
#5C87D8
Tritanopia (blue-blind)
#299BA8
Achromatopsia (no color)
#8C8C8C

Design tokens & code

CSS
--color: #668ada;
/* rgb */ color: rgb(102, 138, 218);
/* oklch */ color: oklch(64.2% 0.127 264.7);
Tailwind
colors: {
  custom: {
    50: '#99abe6',
    500: '#668ada',
    950: '#000000',
  },
}
SCSS
$custom: #668ada;
$custom-light: #99abe6;
$custom-dark: #000000;
JSON
{
  "hex": "#668ada",
  "rgb": {
    "r": 102,
    "g": 138,
    "b": 218
  },
  "hsl": {
    "h": 221.379,
    "s": 61.053,
    "l": 62.745
  },
  "oklch": {
    "l": 0.64212,
    "c": 0.12718,
    "h": 264.7
  },
  "luminance": 0.26064
}

Semantic roles & 50–950 ramp

primary
#668ADA
secondary
#E3D6B9
accent
#931DC9
background
#F9FAFE
surface
#F2F4FC
border
#CCCED5
text
#0E1016
muted
#7E7F84

Preview Lab

Preview with #668ADA

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

Preview Lab → · Contrast checker → · Palette generator →

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