#664CA3#664CA3

#664CA3 is a mid, vivid violet. Relative luminance 0.106; OKLCH L 48.7% C 0.135 H 294.6°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#664CA3
RGB	rgb(102, 76, 163)
HSL	hsl(258, 36%, 47%)
HSV	hsv(258, 53%, 64%)
CMYK	cmyk(37.4%, 53.4%, 0%, 36.1%)
CIE-LAB	lab(38.96, 31.31, -43.43)
CIE-LCH	lch(38.96, 53.54, 305.79°)
OKLab	oklab(48.68% 0.0564 -0.123)
OKLCH	oklch(48.68% 0.135 294.6)
XYZ	xyz(14.6731, 10.6377, 35.9234)
Luminance	0.1064 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664CA3 #89A34C

analogous

#4C5EA3 #664CA3 #924CA3

triadic

#664CA3 #A3664C #4CA366

tetradic

#664CA3 #A34C5E #89A34C #4CA392

square

#664CA3 #A34C5E #89A34C #4CA392

split-complementary

#664CA3 #A3924C #5EA34C

monochromatic

#322550 #4C3979 #664CA3 #8770BC #AA9AD0

Accessibility & contrast

On white

6.71

#664CA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#664CA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664CA3

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664CA3	#FFFFFF	#000000	##FFFFFF
##664CA3	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#285DA6

Deuteranopia (green-blind)

#2E5AA1

Tritanopia (blue-blind)

#575E70

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #664ca3;
/* rgb */ color: rgb(102, 76, 163);
/* oklch */ color: oklch(48.7% 0.135 294.6);

Tailwind

colors: {
  custom: {
    50: '#957fbf',
    500: '#664ca3',
    950: '#000000',
  },
}

SCSS

$custom: #664ca3;
$custom-light: #957fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#664ca3",
  "rgb": {
    "r": 102,
    "g": 76,
    "b": 163
  },
  "hsl": {
    "h": 257.931,
    "s": 36.402,
    "l": 46.863
  },
  "oklch": {
    "l": 0.48676,
    "c": 0.1353,
    "h": 294.6
  },
  "luminance": 0.10638
}

Semantic roles & 50–950 ramp

primary

#664CA3

secondary

#AFBC8F

accent

#CC5BAB

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0E0A12

muted

#7E7C81

Preview Lab

Preview with #664CA3

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

Preview Lab → · Contrast checker → · Palette generator →