#6440C5#6440C5

#6440C5 is a mid, vivid violet. Relative luminance 0.104; OKLCH L 49.1% C 0.195 H 289.7°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#6440C5
RGB	rgb(100, 64, 197)
HSL	hsl(256, 53%, 51%)
HSV	hsv(256, 68%, 77%)
CMYK	cmyk(49.2%, 67.5%, 0%, 22.7%)
CIE-LAB	lab(38.56, 47.43, -64.16)
CIE-LCH	lch(38.56, 79.79, 306.48°)
OKLab	oklab(49.1% 0.0657 -0.184)
OKLCH	oklch(49.1% 0.195 289.7)
XYZ	xyz(17.1641, 10.4066, 53.9168)
Luminance	0.1041 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 0.52

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6440C5 #A1C540

analogous

#405EC5 #6440C5 #A740C5

triadic

#6440C5 #C56440 #40C564

tetradic

#6440C5 #C5405E #A1C540 #40C5A7

square

#6440C5 #C5405E #A1C540 #40C5A7

split-complementary

#6440C5 #C5A740 #5EC540

monochromatic

#34206A #4B2F99 #6440C5 #8A6FD3 #B09EE2

Accessibility & contrast

On white

6.82

#6440C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#6440C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6440C5

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6440C5	#FFFFFF	#000000	##FFFFFF
##6440C5	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC9

Deuteranopia (green-blind)

#0058C2

Tritanopia (blue-blind)

#43617D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #6440c5;
/* rgb */ color: rgb(100, 64, 197);
/* oklch */ color: oklch(49.1% 0.195 289.7);

Tailwind

colors: {
  custom: {
    50: '#9877d8',
    500: '#6440c5',
    950: '#000000',
  },
}

SCSS

$custom: #6440c5;
$custom-light: #9877d8;
$custom-dark: #000000;

JSON

{
  "hex": "#6440c5",
  "rgb": {
    "r": 100,
    "g": 64,
    "b": 197
  },
  "hsl": {
    "h": 256.241,
    "s": 53.414,
    "l": 51.176
  },
  "oklch": {
    "l": 0.49098,
    "c": 0.19535,
    "h": 289.7
  },
  "luminance": 0.10407
}

Semantic roles & 50–950 ramp

primary

#6440C5

secondary

#BECE93

accent

#DD4BB5

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0915

muted

#7E7B83

Preview Lab

Preview with #6440C5

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

Preview Lab → · Contrast checker → · Palette generator →