#664CA5#664CA5

#664CA5 is a mid, vivid violet. Relative luminance 0.107; OKLCH L 48.8% C 0.138 H 294.2°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#664CA5
RGB	rgb(102, 76, 165)
HSL	hsl(258, 37%, 47%)
HSV	hsv(258, 54%, 65%)
CMYK	cmyk(38.2%, 53.9%, 0%, 35.3%)
CIE-LAB	lab(39.09, 31.87, -44.43)
CIE-LCH	lch(39.09, 54.68, 305.66°)
OKLab	oklab(48.81% 0.0565 -0.1259)
OKLCH	oklch(48.81% 0.138 294.2)
XYZ	xyz(14.8537, 10.7100, 36.8747)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664CA5 #8BA54C

analogous

#4C5FA5 #664CA5 #924CA5

triadic

#664CA5 #A5664C #4CA566

tetradic

#664CA5 #A54C5F #8BA54C #4CA592

square

#664CA5 #A54C5F #8BA54C #4CA592

split-complementary

#664CA5 #A5924C #5FA54C

monochromatic

#322551 #4C397B #664CA5 #8771BD #AA9BD1

Accessibility & contrast

On white

6.68

#664CA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#664CA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664CA5

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664CA5	#FFFFFF	#000000	##FFFFFF
##664CA5	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265DA8

Deuteranopia (green-blind)

#2C5BA3

Tritanopia (blue-blind)

#565E71

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #664ca5;
/* rgb */ color: rgb(102, 76, 165);
/* oklch */ color: oklch(48.8% 0.138 294.2);

Tailwind

colors: {
  custom: {
    50: '#957fc0',
    500: '#664ca5',
    950: '#000000',
  },
}

SCSS

$custom: #664ca5;
$custom-light: #957fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#664ca5",
  "rgb": {
    "r": 102,
    "g": 76,
    "b": 165
  },
  "hsl": {
    "h": 257.528,
    "s": 36.929,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48808,
    "c": 0.13801,
    "h": 294.2
  },
  "luminance": 0.1071
}

Semantic roles & 50–950 ramp

primary

#664CA5

secondary

#B0BD8F

accent

#CD5BAC

background

#F9F7FB

surface

#F2EEF7

border

#CCC9D0

text

#0E0A12

muted

#7E7C81

Preview Lab

Preview with #664CA5

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

Preview Lab → · Contrast checker → · Palette generator →