#643798#643798

#643798 is a dark, vivid violet. Relative luminance 0.077; OKLCH L 44.3% C 0.153 H 301.8°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#643798
RGB	rgb(100, 55, 152)
HSL	hsl(268, 47%, 41%)
HSV	hsv(268, 64%, 60%)
CMYK	cmyk(34.2%, 63.8%, 0%, 40.4%)
CIE-LAB	lab(33.37, 40.03, -45.80)
CIE-LCH	lch(33.37, 60.83, 311.15°)
OKLab	oklab(44.29% 0.0806 -0.13)
OKLCH	oklch(44.29% 0.153 301.8)
XYZ	xyz(12.2879, 7.7087, 30.5402)
Luminance	0.0771 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643798 #6B9837

analogous

#373A98 #643798 #943798

triadic

#643798 #986437 #379864

tetradic

#643798 #98373A #6B9837 #379894

square

#643798 #98373A #6B9837 #379894

split-complementary

#643798 #989437 #3A9837

monochromatic

#29163E #46276B #643798 #824DBF #A27ACF

Accessibility & contrast

On white

8.26

#643798 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#643798 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643798

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643798	#FFFFFF	#000000	##FFFFFF
##643798	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9B

Deuteranopia (green-blind)

#164E96

Tritanopia (blue-blind)

#594C62

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #643798;
/* rgb */ color: rgb(100, 55, 152);
/* oklch */ color: oklch(44.3% 0.153 301.8);

Tailwind

colors: {
  custom: {
    50: '#9470b7',
    500: '#643798',
    950: '#000000',
  },
}

SCSS

$custom: #643798;
$custom-light: #9470b7;
$custom-dark: #000000;

JSON

{
  "hex": "#643798",
  "rgb": {
    "r": 100,
    "g": 55,
    "b": 152
  },
  "hsl": {
    "h": 267.835,
    "s": 46.86,
    "l": 40.588
  },
  "oklch": {
    "l": 0.44286,
    "c": 0.15296,
    "h": 301.8
  },
  "luminance": 0.07709
}

Semantic roles & 50–950 ramp

primary

#643798

secondary

#98B873

accent

#D65199

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0E0811

muted

#7E7B80

Preview Lab

Preview with #643798

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

Preview Lab → · Contrast checker → · Palette generator →