#643E9C#643E9C

#643E9C is a mid, vivid violet. Relative luminance 0.086; OKLCH L 45.6% C 0.147 H 299.1°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#643E9C
RGB	rgb(100, 62, 156)
HSL	hsl(264, 43%, 43%)
HSV	hsv(264, 60%, 61%)
CMYK	cmyk(35.9%, 60.3%, 0%, 38.8%)
CIE-LAB	lab(35.11, 37.15, -45.42)
CIE-LCH	lch(35.11, 58.68, 309.29°)
OKLab	oklab(45.64% 0.0717 -0.1289)
OKLCH	oklch(45.64% 0.147 299.1)
XYZ	xyz(12.9774, 8.5547, 32.4136)
Luminance	0.0856 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E9C #769C3E

analogous

#3E479C #643E9C #933E9C

triadic

#643E9C #9C643E #3E9C64

tetradic

#643E9C #9C3E47 #769C3E #3E9C93

square

#643E9C #9C3E47 #769C3E #3E9C93

split-complementary

#643E9C #9C933E #479C3E

monochromatic

#2C1B44 #482D70 #643E9C #825ABD #A386CF

Accessibility & contrast

On white

7.75

#643E9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#643E9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E9C

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E9C	#FFFFFF	#000000	##FFFFFF
##643E9C	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07539F

Deuteranopia (green-blind)

#1D529A

Tritanopia (blue-blind)

#585267

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643e9c;
/* rgb */ color: rgb(100, 62, 156);
/* oklch */ color: oklch(45.6% 0.147 299.1);

Tailwind

colors: {
  custom: {
    50: '#9475ba',
    500: '#643e9c',
    950: '#000000',
  },
}

SCSS

$custom: #643e9c;
$custom-light: #9475ba;
$custom-dark: #000000;

JSON

{
  "hex": "#643e9c",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 156
  },
  "hsl": {
    "h": 264.255,
    "s": 43.119,
    "l": 42.745
  },
  "oklch": {
    "l": 0.45643,
    "c": 0.14749,
    "h": 299.1
  },
  "luminance": 0.08555
}

Semantic roles & 50–950 ramp

primary

#643E9C

secondary

#A1B97D

accent

#D355A0

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0812

muted

#7E7B81

Preview Lab

Preview with #643E9C

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

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