#668DC4#668DC4

#668DC4 is a light, moderate blue. Relative luminance 0.259; OKLCH L 63.7% C 0.094 H 257.0°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#668DC4
RGB	rgb(102, 141, 196)
HSL	hsl(215, 44%, 58%)
HSV	hsv(215, 48%, 77%)
CMYK	cmyk(48%, 28.1%, 0%, 23.1%)
CIE-LAB	lab(57.90, 1.66, -32.72)
CIE-LCH	lch(57.90, 32.76, 272.91°)
OKLab	oklab(63.73% -0.0211 -0.0916)
OKLCH	oklch(63.73% 0.094 257)
XYZ	xyz(24.9648, 25.8584, 55.8895)
Luminance	0.2586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668DC4 #C49D66

analogous

#66BCC4 #668DC4 #6E66C4

triadic

#668DC4 #C4668D #8DC466

tetradic

#668DC4 #C466BC #C49D66 #66C46E

square

#668DC4 #C466BC #C49D66 #66C46E

split-complementary

#668DC4 #C46E66 #BCC466

monochromatic

#31517F #426DAB #668DC4 #92AED5 #BECFE6

Accessibility & contrast

On white

3.40

#668DC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#668DC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668DC4

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668DC4	#FFFFFF	#000000	##000000
##668DC4	1.00	3.40	6.17	6.17
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.17	21.00	1.00	1.00
##000000	6.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7890C6

Deuteranopia (green-blind)

#6D87C3

Tritanopia (blue-blind)

#3E99A0

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #668dc4;
/* rgb */ color: rgb(102, 141, 196);
/* oklch */ color: oklch(63.7% 0.094 257.0);

Tailwind

colors: {
  custom: {
    50: '#96aed6',
    500: '#668dc4',
    950: '#000000',
  },
}

SCSS

$custom: #668dc4;
$custom-light: #96aed6;
$custom-dark: #000000;

JSON

{
  "hex": "#668dc4",
  "rgb": {
    "r": 102,
    "g": 141,
    "b": 196
  },
  "hsl": {
    "h": 215.106,
    "s": 44.34,
    "l": 58.431
  },
  "oklch": {
    "l": 0.63726,
    "c": 0.09397,
    "h": 257
  },
  "luminance": 0.2586
}

Semantic roles & 50–950 ramp

primary

#668DC4

secondary

#D6C6B0

accent

#9F54D4

background

#F9FAFD

surface

#F2F4FA

border

#CCCED3

text

#0E1014

muted

#7E7F83

Preview Lab

Preview with #668DC4

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

Preview Lab → · Contrast checker → · Palette generator →