#664AA4#664AA4

#664AA4 is a mid, vivid violet. Relative luminance 0.104; OKLCH L 48.4% C 0.140 H 295.0°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#664AA4
RGB	rgb(102, 74, 164)
HSL	hsl(259, 38%, 47%)
HSV	hsv(259, 55%, 64%)
CMYK	cmyk(37.8%, 54.9%, 0%, 35.7%)
CIE-LAB	lab(38.56, 32.79, -44.69)
CIE-LCH	lch(38.56, 55.43, 306.27°)
OKLab	oklab(48.39% 0.0591 -0.1267)
OKLCH	oklch(48.39% 0.14 295)
XYZ	xyz(14.6274, 10.4024, 36.3520)
Luminance	0.1040 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664AA4 #88A44A

analogous

#4A5BA4 #664AA4 #934AA4

triadic

#664AA4 #A4664A #4AA466

tetradic

#664AA4 #A44A5B #88A44A #4AA493

square

#664AA4 #A44A5B #88A44A #4AA493

split-complementary

#664AA4 #A4934A #5BA44A

monochromatic

#322450 #4C377A #664AA4 #876EBD #AA98D0

Accessibility & contrast

On white

6.82

#664AA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#664AA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664AA4

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664AA4	#FFFFFF	#000000	##FFFFFF
##664AA4	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225CA7

Deuteranopia (green-blind)

#2A59A2

Tritanopia (blue-blind)

#575C70

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #664aa4;
/* rgb */ color: rgb(102, 74, 164);
/* oklch */ color: oklch(48.4% 0.140 295.0);

Tailwind

colors: {
  custom: {
    50: '#957dbf',
    500: '#664aa4',
    950: '#000000',
  },
}

SCSS

$custom: #664aa4;
$custom-light: #957dbf;
$custom-dark: #000000;

JSON

{
  "hex": "#664aa4",
  "rgb": {
    "r": 102,
    "g": 74,
    "b": 164
  },
  "hsl": {
    "h": 258.667,
    "s": 37.815,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48393,
    "c": 0.13977,
    "h": 295
  },
  "luminance": 0.10403
}

Semantic roles & 50–950 ramp

primary

#664AA4

secondary

#AEBD8D

accent

#CE5AAA

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0E0A12

muted

#7E7C81

Preview Lab

Preview with #664AA4

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

Preview Lab → · Contrast checker → · Palette generator →