#643E97#643E97

#643E97 is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.3% C 0.141 H 300.6°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#643E97
RGB	rgb(100, 62, 151)
HSL	hsl(266, 42%, 42%)
HSV	hsv(266, 59%, 59%)
CMYK	cmyk(33.8%, 58.9%, 0%, 40.8%)
CIE-LAB	lab(34.78, 35.81, -42.92)
CIE-LCH	lch(34.78, 55.90, 309.84°)
OKLab	oklab(45.29% 0.0718 -0.1215)
OKLCH	oklch(45.29% 0.141 300.6)
XYZ	xyz(12.5627, 8.3889, 30.2295)
Luminance	0.0839 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E97 #71973E

analogous

#3E4597 #643E97 #913E97

triadic

#643E97 #97643E #3E9764

tetradic

#643E97 #973E45 #71973E #3E9791

square

#643E97 #973E45 #71973E #3E9791

split-complementary

#643E97 #97913E #45973E

monochromatic

#2B1A40 #472C6C #643E97 #8258BA #A283CC

Accessibility & contrast

On white

7.84

#643E97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#643E97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E97

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E97	#FFFFFF	#000000	##FFFFFF
##643E97	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13519A

Deuteranopia (green-blind)

#245195

Tritanopia (blue-blind)

#595064

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643e97;
/* rgb */ color: rgb(100, 62, 151);
/* oklch */ color: oklch(45.3% 0.141 300.6);

Tailwind

colors: {
  custom: {
    50: '#9375b6',
    500: '#643e97',
    950: '#000000',
  },
}

SCSS

$custom: #643e97;
$custom-light: #9375b6;
$custom-dark: #000000;

JSON

{
  "hex": "#643e97",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 151
  },
  "hsl": {
    "h": 265.618,
    "s": 41.784,
    "l": 41.765
  },
  "oklch": {
    "l": 0.45293,
    "c": 0.14115,
    "h": 300.6
  },
  "luminance": 0.08389
}

Semantic roles & 50–950 ramp

primary

#643E97

secondary

#9DB67A

accent

#D2569D

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643E97

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

Preview Lab → · Contrast checker → · Palette generator →