#6639B7#6639B7

#6639B7 is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.2% C 0.187 H 294.5°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#6639B7
RGB	rgb(102, 57, 183)
HSL	hsl(261, 53%, 47%)
HSV	hsv(261, 69%, 72%)
CMYK	cmyk(44.3%, 68.9%, 0%, 28.2%)
CIE-LAB	lab(36.31, 47.63, -59.61)
CIE-LCH	lch(36.31, 76.30, 308.63°)
OKLab	oklab(47.19% 0.0776 -0.1705)
OKLCH	oklch(47.19% 0.187 294.5)
XYZ	xyz(15.4876, 9.1695, 45.7445)
Luminance	0.0917 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 3.23

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6639B7 #8AB739

analogous

#394BB7 #6639B7 #A539B7

triadic

#6639B7 #B76639 #39B766

tetradic

#6639B7 #B7394B #8AB739 #39B7A5

square

#6639B7 #B7394B #8AB739 #39B7A5

split-complementary

#6639B7 #B7A539 #4BB739

monochromatic

#321C5A #4C2A88 #6639B7 #8760CD #AA8EDC

Accessibility & contrast

On white

7.41

#6639B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#6639B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6639B7

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6639B7	#FFFFFF	#000000	##FFFFFF
##6639B7	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BB

Deuteranopia (green-blind)

#0053B4

Tritanopia (blue-blind)

#4F5873

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #6639b7;
/* rgb */ color: rgb(102, 57, 183);
/* oklch */ color: oklch(47.2% 0.187 294.5);

Tailwind

colors: {
  custom: {
    50: '#9873ce',
    500: '#6639b7',
    950: '#000000',
  },
}

SCSS

$custom: #6639b7;
$custom-light: #9873ce;
$custom-dark: #000000;

JSON

{
  "hex": "#6639b7",
  "rgb": {
    "r": 102,
    "g": 57,
    "b": 183
  },
  "hsl": {
    "h": 261.429,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.47185,
    "c": 0.18735,
    "h": 294.5
  },
  "luminance": 0.0917
}

Semantic roles & 50–950 ramp

primary

#6639B7

secondary

#AFC785

accent

#DC4CA8

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #6639B7

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

Preview Lab → · Contrast checker → · Palette generator →