#643487#643487

#643487 is a dark, vivid violet. Relative luminance 0.069; OKLCH L 42.6% C 0.137 H 308.3°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#643487
RGB	rgb(100, 52, 135)
HSL	hsl(275, 44%, 37%)
HSV	hsv(275, 61%, 53%)
CMYK	cmyk(25.9%, 61.5%, 0%, 47.1%)
CIE-LAB	lab(31.61, 37.37, -38.18)
CIE-LCH	lch(31.61, 53.43, 314.38°)
OKLab	oklab(42.64% 0.0851 -0.1076)
OKLCH	oklch(42.64% 0.137 308.3)
XYZ	xyz(10.8558, 6.9147, 23.6798)
Luminance	0.0692 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643487 #578734

analogous

#3B3487 #643487 #873481

triadic

#643487 #876434 #348764

tetradic

#643487 #873B34 #578734 #348187

square

#643487 #873B34 #578734 #348187

split-complementary

#643487 #818734 #34873B

monochromatic

#23122F #43235B #643487 #8545B3 #A26EC7

Accessibility & contrast

On white

8.81

#643487 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#643487 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643487

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643487	#FFFFFF	#000000	##FFFFFF
##643487	1.00	8.81	2.38	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12488A

Deuteranopia (green-blind)

#284B85

Tritanopia (blue-blind)

#5F4458

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #643487;
/* rgb */ color: rgb(100, 52, 135);
/* oklch */ color: oklch(42.6% 0.137 308.3);

Tailwind

colors: {
  custom: {
    50: '#936eaa',
    500: '#643487',
    950: '#000000',
  },
}

SCSS

$custom: #643487;
$custom-light: #936eaa;
$custom-dark: #000000;

JSON

{
  "hex": "#643487",
  "rgb": {
    "r": 100,
    "g": 52,
    "b": 135
  },
  "hsl": {
    "h": 274.699,
    "s": 44.385,
    "l": 36.667
  },
  "oklch": {
    "l": 0.42643,
    "c": 0.13719,
    "h": 308.3
  },
  "luminance": 0.06915
}

Semantic roles & 50–950 ramp

primary

#643487

secondary

#86AF67

accent

#D4548A

background

#F9F6FA

surface

#F2ECF4

border

#CCC7CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #643487

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

Preview Lab → · Contrast checker → · Palette generator →