#643E79#643E79

#643E79 is a dark, moderate violet. Relative luminance 0.075; OKLCH L 43.4% C 0.103 H 312.5°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#643E79
RGB	rgb(100, 62, 121)
HSL	hsl(279, 32%, 36%)
HSV	hsv(279, 49%, 47%)
CMYK	cmyk(17.4%, 48.8%, 0%, 52.5%)
CIE-LAB	lab(33.00, 28.18, -27.27)
CIE-LCH	lch(33.00, 39.21, 315.94°)
OKLab	oklab(43.4% 0.0695 -0.0758)
OKLCH	oklch(43.4% 0.103 312.5)
XYZ	xyz(10.4288, 7.5353, 18.9905)
Luminance	0.0754 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E79 #53793E

analogous

#463E79 #643E79 #793E70

triadic

#643E79 #79643E #3E7964

tetradic

#643E79 #79463E #53793E #3E7079

square

#643E79 #79463E #53793E #3E7079

split-complementary

#643E79 #70793E #3E7946

monochromatic

#211528 #432951 #643E79 #8553A1 #A278BA

Accessibility & contrast

On white

8.38

#643E79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#643E79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E79

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E79	#FFFFFF	#000000	##FFFFFF
##643E79	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314C7B

Deuteranopia (green-blind)

#3C4E77

Tritanopia (blue-blind)

#624756

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #643e79;
/* rgb */ color: rgb(100, 62, 121);
/* oklch */ color: oklch(43.4% 0.103 312.5);

Tailwind

colors: {
  custom: {
    50: '#9174a0',
    500: '#643e79',
    950: '#000000',
  },
}

SCSS

$custom: #643e79;
$custom-light: #9174a0;
$custom-dark: #000000;

JSON

{
  "hex": "#643e79",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 121
  },
  "hsl": {
    "h": 278.644,
    "s": 32.24,
    "l": 35.882
  },
  "oklch": {
    "l": 0.43397,
    "c": 0.10286,
    "h": 312.5
  },
  "luminance": 0.07535
}

Semantic roles & 50–950 ramp

primary

#643E79

secondary

#82A46F

accent

#C85F85

background

#F9F7F9

surface

#F1EDF2

border

#CBC8CC

text

#0D080E

muted

#7E7B7E

Preview Lab

Preview with #643E79

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

Preview Lab → · Contrast checker → · Palette generator →