#643E9F#643E9F

#643E9F is a mid, vivid violet. Relative luminance 0.087; OKLCH L 45.9% C 0.151 H 298.3°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#643E9F
RGB	rgb(100, 62, 159)
HSL	hsl(264, 44%, 43%)
HSV	hsv(264, 61%, 62%)
CMYK	cmyk(37.1%, 61%, 0%, 37.6%)
CIE-LAB	lab(35.32, 37.96, -46.90)
CIE-LCH	lch(35.32, 60.34, 308.99°)
OKLab	oklab(45.86% 0.0716 -0.1332)
OKLCH	oklch(45.86% 0.151 298.3)
XYZ	xyz(13.2346, 8.6576, 33.7680)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E9F #799F3E

analogous

#3E499F #643E9F #943E9F

triadic

#643E9F #9F643E #3E9F64

tetradic

#643E9F #9F3E49 #799F3E #3E9F94

square

#643E9F #9F3E49 #799F3E #3E9F94

split-complementary

#643E9F #9F943E #499F3E

monochromatic

#2D1C47 #482D73 #643E9F #825BBF #A487D0

Accessibility & contrast

On white

7.69

#643E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#643E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E9F

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E9F	#FFFFFF	#000000	##FFFFFF
##643E9F	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A2

Deuteranopia (green-blind)

#18529D

Tritanopia (blue-blind)

#575368

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643e9f;
/* rgb */ color: rgb(100, 62, 159);
/* oklch */ color: oklch(45.9% 0.151 298.3);

Tailwind

colors: {
  custom: {
    50: '#9475bc',
    500: '#643e9f',
    950: '#000000',
  },
}

SCSS

$custom: #643e9f;
$custom-light: #9475bc;
$custom-dark: #000000;

JSON

{
  "hex": "#643e9f",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 159
  },
  "hsl": {
    "h": 263.505,
    "s": 43.891,
    "l": 43.333
  },
  "oklch": {
    "l": 0.45857,
    "c": 0.15127,
    "h": 298.3
  },
  "luminance": 0.08658
}

Semantic roles & 50–950 ramp

primary

#643E9F

secondary

#A3BB7E

accent

#D454A2

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643E9F

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

Preview Lab → · Contrast checker → · Palette generator →