#6440BB#6440BB

#6440BB is a mid, vivid violet. Relative luminance 0.100; OKLCH L 48.3% C 0.183 H 291.5°. Best body text is #FFFFFF at 7.02:1 contrast (WCAG AA passes).

Color values

HEX	#6440BB
RGB	rgb(100, 64, 187)
HSL	hsl(258, 49%, 49%)
HSV	hsv(258, 66%, 73%)
CMYK	cmyk(46.5%, 65.8%, 0%, 26.7%)
CIE-LAB	lab(37.78, 44.60, -59.58)
CIE-LCH	lch(37.78, 74.43, 306.82°)
OKLab	oklab(48.29% 0.0671 -0.1705)
OKLCH	oklch(48.29% 0.183 291.5)
XYZ	xyz(16.0561, 9.9634, 48.0812)
Luminance	0.0996 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.83

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6440BB #97BB40

analogous

#405ABB #6440BB #A240BB

triadic

#6440BB #BB6440 #40BB64

tetradic

#6440BB #BB405A #97BB40 #40BBA2

square

#6440BB #BB405A #97BB40 #40BBA2

split-complementary

#6440BB #BBA240 #5ABB40

monochromatic

#332160 #4C308D #6440BB #886CCD #AD99DC

Accessibility & contrast

On white

7.02

#6440BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#6440BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6440BB

7.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6440BB	#FFFFFF	#000000	##FFFFFF
##6440BB	1.00	7.02	2.99	7.02
#FFFFFF	7.02	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BBF

Deuteranopia (green-blind)

#0056B8

Tritanopia (blue-blind)

#495E78

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #6440bb;
/* rgb */ color: rgb(100, 64, 187);
/* oklch */ color: oklch(48.3% 0.183 291.5);

Tailwind

colors: {
  custom: {
    50: '#9777d0',
    500: '#6440bb',
    950: '#000000',
  },
}

SCSS

$custom: #6440bb;
$custom-light: #9777d0;
$custom-dark: #000000;

JSON

{
  "hex": "#6440bb",
  "rgb": {
    "r": 100,
    "g": 64,
    "b": 187
  },
  "hsl": {
    "h": 257.561,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.48287,
    "c": 0.18325,
    "h": 291.5
  },
  "luminance": 0.09964
}

Semantic roles & 50–950 ramp

primary

#6440BB

secondary

#B7C88F

accent

#D94FB0

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0914

muted

#7E7B82

Preview Lab

Preview with #6440BB

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

Preview Lab → · Contrast checker → · Palette generator →