#643F93#643F93

#643F93 is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.2% C 0.134 H 301.6°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#643F93
RGB	rgb(100, 63, 147)
HSL	hsl(266, 40%, 41%)
HSV	hsv(266, 57%, 58%)
CMYK	cmyk(32%, 57.1%, 0%, 42.4%)
CIE-LAB	lab(34.74, 34.17, -40.55)
CIE-LCH	lch(34.74, 53.02, 310.12°)
OKLab	oklab(45.18% 0.0704 -0.1146)
OKLCH	oklch(45.18% 0.134 301.6)
XYZ	xyz(12.2983, 8.3709, 28.5659)
Luminance	0.0837 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F93 #6E933F

analogous

#3F4493 #643F93 #8E3F93

triadic

#643F93 #93643F #3F9364

tetradic

#643F93 #933F44 #6E933F #3F938E

square

#643F93 #933F44 #6E933F #3F938E

split-complementary

#643F93 #938E3F #44933F

monochromatic

#2A1A3D #472D68 #643F93 #8258B7 #A283CA

Accessibility & contrast

On white

7.85

#643F93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#643F93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F93

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F93	#FFFFFF	#000000	##FFFFFF
##643F93	1.00	7.85	2.67	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D5196

Deuteranopia (green-blind)

#2A5191

Tritanopia (blue-blind)

#5B5063

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643f93;
/* rgb */ color: rgb(100, 63, 147);
/* oklch */ color: oklch(45.2% 0.134 301.6);

Tailwind

colors: {
  custom: {
    50: '#9375b3',
    500: '#643f93',
    950: '#000000',
  },
}

SCSS

$custom: #643f93;
$custom-light: #9375b3;
$custom-dark: #000000;

JSON

{
  "hex": "#643f93",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 147
  },
  "hsl": {
    "h": 266.429,
    "s": 40,
    "l": 41.176
  },
  "oklch": {
    "l": 0.45184,
    "c": 0.13447,
    "h": 301.6
  },
  "luminance": 0.08371
}

Semantic roles & 50–950 ramp

primary

#643F93

secondary

#9AB47A

accent

#D0589B

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643F93

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

Preview Lab → · Contrast checker → · Palette generator →