#664FAC#664FAC

#664FAC is a mid, vivid violet. Relative luminance 0.114; OKLCH L 49.8% C 0.143 H 291.8°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#664FAC
RGB	rgb(102, 79, 172)
HSL	hsl(255, 37%, 49%)
HSV	hsv(255, 54%, 67%)
CMYK	cmyk(40.7%, 54.1%, 0%, 32.5%)
CIE-LAB	lab(40.24, 32.05, -46.75)
CIE-LCH	lch(40.24, 56.68, 304.44°)
OKLab	oklab(49.8% 0.053 -0.1327)
OKLCH	oklch(49.8% 0.143 291.8)
XYZ	xyz(15.7199, 11.3949, 40.3929)
Luminance	0.1139 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664FAC #95AC4F

analogous

#4F67AC #664FAC #954FAC

triadic

#664FAC #AC664F #4FAC66

tetradic

#664FAC #AC4F67 #95AC4F #4FAC95

square

#664FAC #AC4F67 #95AC4F #4FAC95

split-complementary

#664FAC #AC954F #67AC4F

monochromatic

#342858 #4D3C82 #664FAC #8A77C1 #AEA1D4

Accessibility & contrast

On white

6.40

#664FAC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#664FAC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664FAC

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664FAC	#FFFFFF	#000000	##FFFFFF
##664FAC	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2460AF

Deuteranopia (green-blind)

#295DAA

Tritanopia (blue-blind)

#536276

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #664fac;
/* rgb */ color: rgb(102, 79, 172);
/* oklch */ color: oklch(49.8% 0.143 291.8);

Tailwind

colors: {
  custom: {
    50: '#9681c5',
    500: '#664fac',
    950: '#000000',
  },
}

SCSS

$custom: #664fac;
$custom-light: #9681c5;
$custom-dark: #000000;

JSON

{
  "hex": "#664fac",
  "rgb": {
    "r": 102,
    "g": 79,
    "b": 172
  },
  "hsl": {
    "h": 254.839,
    "s": 37.052,
    "l": 49.216
  },
  "oklch": {
    "l": 0.49803,
    "c": 0.14289,
    "h": 291.8
  },
  "luminance": 0.11395
}

Semantic roles & 50–950 ramp

primary

#664FAC

secondary

#B6C196

accent

#CD5BB1

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #664FAC

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

Preview Lab → · Contrast checker → · Palette generator →