#6639B5#6639B5

#6639B5 is a mid, vivid violet. Relative luminance 0.091; OKLCH L 47.0% C 0.185 H 294.9°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#6639B5
RGB	rgb(102, 57, 181)
HSL	hsl(262, 52%, 47%)
HSV	hsv(262, 69%, 71%)
CMYK	cmyk(43.6%, 68.5%, 0%, 29%)
CIE-LAB	lab(36.15, 47.09, -58.68)
CIE-LCH	lch(36.15, 75.24, 308.75°)
OKLab	oklab(47.02% 0.078 -0.1678)
OKLCH	oklch(47.02% 0.185 294.9)
XYZ	xyz(15.2809, 9.0868, 44.6559)
Luminance	0.0909 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.47

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6639B5 #88B539

analogous

#394AB5 #6639B5 #A439B5

triadic

#6639B5 #B56639 #39B566

tetradic

#6639B5 #B5394A #88B539 #39B5A4

square

#6639B5 #B5394A #88B539 #39B5A4

split-complementary

#6639B5 #B5A439 #4AB539

monochromatic

#321C58 #4C2A86 #6639B5 #875FCD #AA8DDB

Accessibility & contrast

On white

7.45

#6639B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#6639B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6639B5

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6639B5	#FFFFFF	#000000	##FFFFFF
##6639B5	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B9

Deuteranopia (green-blind)

#0053B2

Tritanopia (blue-blind)

#505772

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #6639b5;
/* rgb */ color: rgb(102, 57, 181);
/* oklch */ color: oklch(47.0% 0.185 294.9);

Tailwind

colors: {
  custom: {
    50: '#9873cc',
    500: '#6639b5',
    950: '#000000',
  },
}

SCSS

$custom: #6639b5;
$custom-light: #9873cc;
$custom-dark: #000000;

JSON

{
  "hex": "#6639b5",
  "rgb": {
    "r": 102,
    "g": 57,
    "b": 181
  },
  "hsl": {
    "h": 261.774,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.47023,
    "c": 0.18501,
    "h": 294.9
  },
  "luminance": 0.09087
}

Semantic roles & 50–950 ramp

primary

#6639B5

secondary

#AEC684

accent

#DC4CA8

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #6639B5

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

Preview Lab → · Contrast checker → · Palette generator →