#642F83#642F83

#642F83 is a dark, vivid violet. Relative luminance 0.064; OKLCH L 41.6% C 0.140 H 310.8°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#642F83
RGB	rgb(100, 47, 131)
HSL	hsl(278, 47%, 35%)
HSV	hsv(278, 64%, 51%)
CMYK	cmyk(23.7%, 64.1%, 0%, 48.6%)
CIE-LAB	lab(30.35, 39.10, -37.71)
CIE-LCH	lch(30.35, 54.32, 316.04°)
OKLab	oklab(41.65% 0.0918 -0.1062)
OKLCH	oklch(41.65% 0.14 310.8)
XYZ	xyz(10.3680, 6.3813, 22.1539)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#642F83 #4E832F

analogous

#3A2F83 #642F83 #832F78

triadic

#642F83 #83642F #2F8364

tetradic

#642F83 #833A2F #4E832F #2F7883

square

#642F83 #833A2F #4E832F #2F7883

split-complementary

#642F83 #78832F #2F833A

monochromatic

#1F0F29 #421F56 #642F83 #863FB0 #A365C8

Accessibility & contrast

On white

9.23

#642F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#642F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #642F83

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##642F83	#FFFFFF	#000000	##FFFFFF
##642F83	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094586

Deuteranopia (green-blind)

#264881

Tritanopia (blue-blind)

#603F54

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #642f83;
/* rgb */ color: rgb(100, 47, 131);
/* oklch */ color: oklch(41.6% 0.140 310.8);

Tailwind

colors: {
  custom: {
    50: '#936ba7',
    500: '#642f83',
    950: '#000000',
  },
}

SCSS

$custom: #642f83;
$custom-light: #936ba7;
$custom-dark: #000000;

JSON

{
  "hex": "#642f83",
  "rgb": {
    "r": 100,
    "g": 47,
    "b": 131
  },
  "hsl": {
    "h": 277.857,
    "s": 47.191,
    "l": 34.902
  },
  "oklch": {
    "l": 0.41646,
    "c": 0.14034,
    "h": 310.8
  },
  "luminance": 0.06381
}

Semantic roles & 50–950 ramp

primary

#642F83

secondary

#7DAF5F

accent

#D75182

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0D070F

muted

#7E7A7F

Preview Lab

Preview with #642F83

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

Preview Lab → · Contrast checker → · Palette generator →