#664CB2#664CB2

#664CB2 is a mid, vivid violet. Relative luminance 0.112; OKLCH L 49.7% C 0.155 H 291.5°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#664CB2
RGB	rgb(102, 76, 178)
HSL	hsl(255, 40%, 50%)
HSV	hsv(255, 57%, 70%)
CMYK	cmyk(42.7%, 57.3%, 0%, 30.2%)
CIE-LAB	lab(39.93, 35.57, -50.79)
CIE-LCH	lch(39.93, 62.01, 305.00°)
OKLab	oklab(49.7% 0.0569 -0.1446)
OKLCH	oklch(49.7% 0.155 291.5)
XYZ	xyz(16.0976, 11.2075, 43.4260)
Luminance	0.1121 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.97

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664CB2 #98B24C

analogous

#4C65B2 #664CB2 #994CB2

triadic

#664CB2 #B2664C #4CB266

tetradic

#664CB2 #B24C65 #98B24C #4CB299

square

#664CB2 #B24C65 #98B24C #4CB299

split-complementary

#664CB2 #B2994C #65B24C

monochromatic

#35275C #4D3A87 #664CB2 #8A76C5 #AFA1D7

Accessibility & contrast

On white

6.48

#664CB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#664CB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #664CB2

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664CB2	#FFFFFF	#000000	##FFFFFF
##664CB2	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1060B5

Deuteranopia (green-blind)

#195CB0

Tritanopia (blue-blind)

#516277

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #664cb2;
/* rgb */ color: rgb(102, 76, 178);
/* oklch */ color: oklch(49.7% 0.155 291.5);

Tailwind

colors: {
  custom: {
    50: '#977fca',
    500: '#664cb2',
    950: '#000000',
  },
}

SCSS

$custom: #664cb2;
$custom-light: #977fca;
$custom-dark: #000000;

JSON

{
  "hex": "#664cb2",
  "rgb": {
    "r": 102,
    "g": 76,
    "b": 178
  },
  "hsl": {
    "h": 255.294,
    "s": 40.157,
    "l": 49.804
  },
  "oklch": {
    "l": 0.49699,
    "c": 0.15537,
    "h": 291.5
  },
  "luminance": 0.11208
}

Semantic roles & 50–950 ramp

primary

#664CB2

secondary

#B8C496

accent

#D058B1

background

#F9F7FC

surface

#F2EEF8

border

#CCC9D1

text

#0E0A13

muted

#7E7C82

Preview Lab

Preview with #664CB2

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

Preview Lab → · Contrast checker → · Palette generator →