#6639B4#6639B4

#6639B4 is a mid, vivid violet. Relative luminance 0.090; OKLCH L 46.9% C 0.184 H 295.1°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#6639B4
RGB	rgb(102, 57, 180)
HSL	hsl(262, 52%, 46%)
HSV	hsv(262, 68%, 71%)
CMYK	cmyk(43.3%, 68.3%, 0%, 29.4%)
CIE-LAB	lab(36.07, 46.82, -58.21)
CIE-LCH	lch(36.07, 74.71, 308.81°)
OKLab	oklab(46.94% 0.0781 -0.1664)
OKLCH	oklch(46.94% 0.184 295.1)
XYZ	xyz(15.1786, 9.0460, 44.1175)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.60

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6639B4 #87B439

analogous

#394AB4 #6639B4 #A439B4

triadic

#6639B4 #B46639 #39B466

tetradic

#6639B4 #B4394A #87B439 #39B4A4

square

#6639B4 #B4394A #87B439 #39B4A4

split-complementary

#6639B4 #B4A439 #4AB439

monochromatic

#311C57 #4C2A86 #6639B4 #865ECC #A98DDB

Accessibility & contrast

On white

7.48

#6639B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#6639B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6639B4

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6639B4	#FFFFFF	#000000	##FFFFFF
##6639B4	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B8

Deuteranopia (green-blind)

#0053B1

Tritanopia (blue-blind)

#515772

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #6639b4;
/* rgb */ color: rgb(102, 57, 180);
/* oklch */ color: oklch(46.9% 0.184 295.1);

Tailwind

colors: {
  custom: {
    50: '#9873cb',
    500: '#6639b4',
    950: '#000000',
  },
}

SCSS

$custom: #6639b4;
$custom-light: #9873cb;
$custom-dark: #000000;

JSON

{
  "hex": "#6639b4",
  "rgb": {
    "r": 102,
    "g": 57,
    "b": 180
  },
  "hsl": {
    "h": 261.951,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.46942,
    "c": 0.18383,
    "h": 295.1
  },
  "luminance": 0.09046
}

Semantic roles & 50–950 ramp

primary

#6639B4

secondary

#ADC583

accent

#DB4CA7

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #6639B4

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

Preview Lab → · Contrast checker → · Palette generator →