#643EAF#643EAF

#643EAF is a mid, vivid violet. Relative luminance 0.092; OKLCH L 47.1% C 0.171 H 294.3°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#643EAF
RGB	rgb(100, 62, 175)
HSL	hsl(260, 48%, 46%)
HSV	hsv(260, 65%, 69%)
CMYK	cmyk(42.9%, 64.6%, 0%, 31.4%)
CIE-LAB	lab(36.46, 42.35, -54.63)
CIE-LCH	lch(36.46, 69.12, 307.79°)
OKLab	oklab(47.05% 0.0706 -0.156)
OKLCH	oklch(47.05% 0.171 294.3)
XYZ	xyz(14.7139, 9.2493, 41.5592)
Luminance	0.0925 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EAF #89AF3E

analogous

#3E51AF #643EAF #9D3EAF

triadic

#643EAF #AF643E #3EAF64

tetradic

#643EAF #AF3E51 #89AF3E #3EAF9D

square

#643EAF #AF3E51 #89AF3E #3EAF9D

split-complementary

#643EAF #AF9D3E #51AF3E

monochromatic

#301E55 #4A2E82 #643EAF #8563C8 #A890D8

Accessibility & contrast

On white

7.37

#643EAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#643EAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EAF

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EAF	#FFFFFF	#000000	##FFFFFF
##643EAF	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B3

Deuteranopia (green-blind)

#0054AD

Tritanopia (blue-blind)

#505871

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643eaf;
/* rgb */ color: rgb(100, 62, 175);
/* oklch */ color: oklch(47.1% 0.171 294.3);

Tailwind

colors: {
  custom: {
    50: '#9675c8',
    500: '#643eaf',
    950: '#000000',
  },
}

SCSS

$custom: #643eaf;
$custom-light: #9675c8;
$custom-dark: #000000;

JSON

{
  "hex": "#643eaf",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 175
  },
  "hsl": {
    "h": 260.177,
    "s": 47.679,
    "l": 46.471
  },
  "oklch": {
    "l": 0.47051,
    "c": 0.17117,
    "h": 294.3
  },
  "luminance": 0.0925
}

Semantic roles & 50–950 ramp

primary

#643EAF

secondary

#AEC386

accent

#D751AA

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0813

muted

#7E7B82

Preview Lab

Preview with #643EAF

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

Preview Lab → · Contrast checker → · Palette generator →