#643E85#643E85

#643E85 is a dark, moderate violet. Relative luminance 0.078; OKLCH L 44.1% C 0.118 H 306.9°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#643E85
RGB	rgb(100, 62, 133)
HSL	hsl(272, 36%, 38%)
HSV	hsv(272, 53%, 52%)
CMYK	cmyk(24.8%, 53.4%, 0%, 47.8%)
CIE-LAB	lab(33.66, 31.14, -33.67)
CIE-LCH	lch(33.66, 45.86, 312.76°)
OKLab	oklab(44.11% 0.071 -0.0945)
OKLCH	oklch(44.11% 0.118 306.9)
XYZ	xyz(11.2109, 7.8481, 23.1100)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E85 #5F853E

analogous

#413E85 #643E85 #853E82

triadic

#643E85 #85643E #3E8564

tetradic

#643E85 #85413E #5F853E #3E8285

square

#643E85 #85413E #5F853E #3E8285

split-complementary

#643E85 #82853E #3E8541

monochromatic

#251732 #452B5B #643E85 #8352AE #A17CC2

Accessibility & contrast

On white

8.17

#643E85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#643E85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E85

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E85	#FFFFFF	#000000	##FFFFFF
##643E85	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294E87

Deuteranopia (green-blind)

#345083

Tritanopia (blue-blind)

#5F4B5B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #643e85;
/* rgb */ color: rgb(100, 62, 133);
/* oklch */ color: oklch(44.1% 0.118 306.9);

Tailwind

colors: {
  custom: {
    50: '#9274a9',
    500: '#643e85',
    950: '#000000',
  },
}

SCSS

$custom: #643e85;
$custom-light: #9274a9;
$custom-dark: #000000;

JSON

{
  "hex": "#643e85",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 133
  },
  "hsl": {
    "h": 272.113,
    "s": 36.41,
    "l": 38.235
  },
  "oklch": {
    "l": 0.44112,
    "c": 0.11815,
    "h": 306.9
  },
  "luminance": 0.07848
}

Semantic roles & 50–950 ramp

primary

#643E85

secondary

#8DAC73

accent

#CC5B90

background

#F9F7FA

surface

#F1EDF4

border

#CBC8CE

text

#0D0810

muted

#7E7B7F

Preview Lab

Preview with #643E85

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

Preview Lab → · Contrast checker → · Palette generator →