#664CC4#664CC4

#664CC4 is a mid, vivid violet. Relative luminance 0.120; OKLCH L 51.0% C 0.179 H 288.4°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#664CC4
RGB	rgb(102, 76, 196)
HSL	hsl(253, 50%, 53%)
HSV	hsv(253, 61%, 77%)
CMYK	cmyk(48%, 61.2%, 0%, 23.1%)
CIE-LAB	lab(41.18, 40.79, -59.31)
CIE-LCH	lch(41.18, 71.98, 304.52°)
OKLab	oklab(51.02% 0.0563 -0.1696)
OKLCH	oklch(51.02% 0.179 288.4)
XYZ	xyz(18.0249, 11.9784, 53.5762)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 4.93

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664CC4 #AAC44C

analogous

#4C6EC4 #664CC4 #A24CC4

triadic

#664CC4 #C4664C #4CC466

tetradic

#664CC4 #C44C6E #AAC44C #4CC4A2

square

#664CC4 #C44C6E #AAC44C #4CC4A2

split-complementary

#664CC4 #C4A24C #6EC44C

monochromatic

#352571 #4B349F #664CC4 #8D7AD3 #B5A8E2

Accessibility & contrast

On white

6.18

#664CC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#664CC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664CC4

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664CC4	#FFFFFF	#000000	##FFFFFF
##664CC4	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C8

Deuteranopia (green-blind)

#005EC1

Tritanopia (blue-blind)

#476881

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #664cc4;
/* rgb */ color: rgb(102, 76, 196);
/* oklch */ color: oklch(51.0% 0.179 288.4);

Tailwind

colors: {
  custom: {
    50: '#997fd7',
    500: '#664cc4',
    950: '#000000',
  },
}

SCSS

$custom: #664cc4;
$custom-light: #997fd7;
$custom-dark: #000000;

JSON

{
  "hex": "#664cc4",
  "rgb": {
    "r": 102,
    "g": 76,
    "b": 196
  },
  "hsl": {
    "h": 253,
    "s": 50.42,
    "l": 53.333
  },
  "oklch": {
    "l": 0.51017,
    "c": 0.17874,
    "h": 288.4
  },
  "luminance": 0.11979
}

Semantic roles & 50–950 ramp

primary

#664CC4

secondary

#C5D09C

accent

#DA4EBC

background

#F9F7FD

surface

#F2EEFA

border

#CCC9D3

text

#0E0A14

muted

#7E7C83

Preview Lab

Preview with #664CC4

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

Preview Lab → · Contrast checker → · Palette generator →