#643EA0#643EA0

#643EA0 is a mid, vivid violet. Relative luminance 0.087; OKLCH L 45.9% C 0.153 H 298.0°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#643EA0
RGB	rgb(100, 62, 160)
HSL	hsl(263, 44%, 44%)
HSV	hsv(263, 61%, 63%)
CMYK	cmyk(37.5%, 61.2%, 0%, 37.3%)
CIE-LAB	lab(35.39, 38.23, -47.39)
CIE-LCH	lch(35.39, 60.89, 308.90°)
OKLab	oklab(45.93% 0.0716 -0.1347)
OKLCH	oklch(45.93% 0.153 298)
XYZ	xyz(13.3217, 8.6925, 34.2268)
Luminance	0.0869 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EA0 #7AA03E

analogous

#3E49A0 #643EA0 #953EA0

triadic

#643EA0 #A0643E #3EA064

tetradic

#643EA0 #A03E49 #7AA03E #3EA095

square

#643EA0 #A03E49 #7AA03E #3EA095

split-complementary

#643EA0 #A0953E #49A03E

monochromatic

#2D1C48 #482D74 #643EA0 #825CC0 #A488D1

Accessibility & contrast

On white

7.67

#643EA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#643EA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EA0

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EA0	#FFFFFF	#000000	##FFFFFF
##643EA0	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A3

Deuteranopia (green-blind)

#16529E

Tritanopia (blue-blind)

#565369

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643ea0;
/* rgb */ color: rgb(100, 62, 160);
/* oklch */ color: oklch(45.9% 0.153 298.0);

Tailwind

colors: {
  custom: {
    50: '#9475bd',
    500: '#643ea0',
    950: '#000000',
  },
}

SCSS

$custom: #643ea0;
$custom-light: #9475bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643ea0",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 160
  },
  "hsl": {
    "h": 263.265,
    "s": 44.144,
    "l": 43.529
  },
  "oklch": {
    "l": 0.45929,
    "c": 0.15253,
    "h": 298
  },
  "luminance": 0.08693
}

Semantic roles & 50–950 ramp

primary

#643EA0

secondary

#A4BB7F

accent

#D454A2

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643EA0

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

Preview Lab → · Contrast checker → · Palette generator →