#6440C8#6440C8

#6440C8 is a mid, vivid violet. Relative luminance 0.105; OKLCH L 49.3% C 0.199 H 289.1°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#6440C8
RGB	rgb(100, 64, 200)
HSL	hsl(256, 55%, 52%)
HSV	hsv(256, 68%, 78%)
CMYK	cmyk(50%, 68%, 0%, 21.6%)
CIE-LAB	lab(38.80, 48.28, -65.51)
CIE-LCH	lch(38.80, 81.38, 306.39°)
OKLab	oklab(49.35% 0.0653 -0.1879)
OKLCH	oklch(49.35% 0.199 289.1)
XYZ	xyz(17.5112, 10.5455, 55.7452)
Luminance	0.1055 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6440C8 #A4C840

analogous

#4060C8 #6440C8 #A840C8

triadic

#6440C8 #C86440 #40C864

tetradic

#6440C8 #C84060 #A4C840 #40C8A8

square

#6440C8 #C84060 #A4C840 #40C8A8

split-complementary

#6440C8 #C8A840 #60C840

monochromatic

#34206E #4B2D9D #6440C8 #8B70D6 #B19FE3

Accessibility & contrast

On white

6.75

#6440C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#6440C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6440C8

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6440C8	#FFFFFF	#000000	##FFFFFF
##6440C8	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)

#005ECC

Deuteranopia (green-blind)

#0058C5

Tritanopia (blue-blind)

#41627F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #6440c8;
/* rgb */ color: rgb(100, 64, 200);
/* oklch */ color: oklch(49.3% 0.199 289.1);

Tailwind

colors: {
  custom: {
    50: '#9977da',
    500: '#6440c8',
    950: '#000000',
  },
}

SCSS

$custom: #6440c8;
$custom-light: #9977da;
$custom-dark: #000000;

JSON

{
  "hex": "#6440c8",
  "rgb": {
    "r": 100,
    "g": 64,
    "b": 200
  },
  "hsl": {
    "h": 255.882,
    "s": 55.285,
    "l": 51.765
  },
  "oklch": {
    "l": 0.49346,
    "c": 0.19895,
    "h": 289.1
  },
  "luminance": 0.10546
}

Semantic roles & 50–950 ramp

primary

#6440C8

secondary

#C0D094

accent

#DF49B7

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #6440C8

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

Preview Lab → · Contrast checker → · Palette generator →