#643A80#643A80

#643A80 is a dark, moderate violet. Relative luminance 0.073; OKLCH L 43.1% C 0.119 H 310.0°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#643A80
RGB	rgb(100, 58, 128)
HSL	hsl(276, 38%, 36%)
HSV	hsv(276, 55%, 50%)
CMYK	cmyk(21.9%, 54.7%, 0%, 49.8%)
CIE-LAB	lab(32.47, 32.25, -32.47)
CIE-LCH	lch(32.47, 45.76, 314.80°)
OKLab	oklab(43.13% 0.0764 -0.0909)
OKLCH	oklch(43.13% 0.119 310)
XYZ	xyz(10.6641, 7.2941, 21.2640)
Luminance	0.0729 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A80 #56803A

analogous

#413A80 #643A80 #803A79

triadic

#643A80 #80643A #3A8064

tetradic

#643A80 #80413A #56803A #3A7980

square

#643A80 #80413A #56803A #3A7980

split-complementary

#643A80 #79803A #3A8041

monochromatic

#22142C #432756 #643A80 #854DAA #A274C0

Accessibility & contrast

On white

8.54

#643A80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#643A80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A80

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A80	#FFFFFF	#000000	##FFFFFF
##643A80	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264A82

Deuteranopia (green-blind)

#344D7E

Tritanopia (blue-blind)

#604657

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #643a80;
/* rgb */ color: rgb(100, 58, 128);
/* oklch */ color: oklch(43.1% 0.119 310.0);

Tailwind

colors: {
  custom: {
    50: '#9272a5',
    500: '#643a80',
    950: '#000000',
  },
}

SCSS

$custom: #643a80;
$custom-light: #9272a5;
$custom-dark: #000000;

JSON

{
  "hex": "#643a80",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 128
  },
  "hsl": {
    "h": 276,
    "s": 37.634,
    "l": 36.471
  },
  "oklch": {
    "l": 0.43132,
    "c": 0.11876,
    "h": 310
  },
  "luminance": 0.07294
}

Semantic roles & 50–950 ramp

primary

#643A80

secondary

#85A96C

accent

#CE5A88

background

#F9F6FA

surface

#F1ECF4

border

#CBC7CE

text

#0D080F

muted

#7E7B7F

Preview Lab

Preview with #643A80

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

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