#6643BE#6643BE

#6643BE is a mid, vivid violet. Relative luminance 0.106; OKLCH L 49.2% C 0.183 H 291.3°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#6643BE
RGB	rgb(102, 67, 190)
HSL	hsl(257, 49%, 50%)
HSV	hsv(257, 65%, 75%)
CMYK	cmyk(46.3%, 64.7%, 0%, 25.5%)
CIE-LAB	lab(38.82, 44.18, -59.63)
CIE-LCH	lch(38.82, 74.21, 306.53°)
OKLab	oklab(49.16% 0.0664 -0.1706)
OKLCH	oklch(49.16% 0.183 291.3)
XYZ	xyz(16.7783, 10.5562, 49.8587)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.56

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6643BE #9BBE43

analogous

#435DBE #6643BE #A343BE

triadic

#6643BE #BE6643 #43BE66

tetradic

#6643BE #BE435D #9BBE43 #43BEA3

square

#6643BE #BE435D #9BBE43 #43BEA3

split-complementary

#6643BE #BEA343 #5DBE43

monochromatic

#352364 #4D3291 #6643BE #8B70CE #B09EDD

Accessibility & contrast

On white

6.75

#6643BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#6643BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6643BE

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6643BE	#FFFFFF	#000000	##FFFFFF
##6643BE	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC2

Deuteranopia (green-blind)

#0059BB

Tritanopia (blue-blind)

#4B607A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #6643be;
/* rgb */ color: rgb(102, 67, 190);
/* oklch */ color: oklch(49.2% 0.183 291.3);

Tailwind

colors: {
  custom: {
    50: '#9979d2',
    500: '#6643be',
    950: '#000000',
  },
}

SCSS

$custom: #6643be;
$custom-light: #9979d2;
$custom-dark: #000000;

JSON

{
  "hex": "#6643be",
  "rgb": {
    "r": 102,
    "g": 67,
    "b": 190
  },
  "hsl": {
    "h": 257.073,
    "s": 48.617,
    "l": 50.392
  },
  "oklch": {
    "l": 0.49162,
    "c": 0.18307,
    "h": 291.3
  },
  "luminance": 0.10557
}

Semantic roles & 50–950 ramp

primary

#6643BE

secondary

#BACA93

accent

#D850B1

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0E0914

muted

#7E7B83

Preview Lab

Preview with #6643BE

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

Preview Lab → · Contrast checker → · Palette generator →