#645C8A#645C8A

#645C8A is a mid, moderate violet. Relative luminance 0.122; OKLCH L 50.1% C 0.073 H 291.5°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#645C8A
RGB	rgb(100, 92, 138)
HSL	hsl(250, 20%, 45%)
HSV	hsv(250, 33%, 54%)
CMYK	cmyk(27.5%, 33.3%, 0%, 45.9%)
CIE-LAB	lab(41.53, 13.99, -24.37)
CIE-LCH	lch(41.53, 28.10, 299.85°)
OKLab	oklab(50.14% 0.0267 -0.0676)
OKLCH	oklch(50.14% 0.073 291.5)
XYZ	xyz(13.6690, 12.1984, 25.6742)
Luminance	0.1220 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C8A #828A5C

analogous

#5C6B8A #645C8A #7B5C8A

triadic

#645C8A #8A645C #5C8A64

tetradic

#645C8A #8A5C6B #828A5C #5C8A7B

square

#645C8A #8A5C6B #828A5C #5C8A7B

split-complementary

#645C8A #8A7B5C #6B8A5C

monochromatic

#2F2B41 #494465 #645C8A #837CA7 #A6A0C0

Accessibility & contrast

On white

6.11

#645C8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#645C8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C8A

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C8A	#FFFFFF	#000000	##FFFFFF
##645C8A	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50638C

Deuteranopia (green-blind)

#506189

Tritanopia (blue-blind)

#5C646D

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #645c8a;
/* rgb */ color: rgb(100, 92, 138);
/* oklch */ color: oklch(50.1% 0.073 291.5);

Tailwind

colors: {
  custom: {
    50: '#918aac',
    500: '#645c8a',
    950: '#000000',
  },
}

SCSS

$custom: #645c8a;
$custom-light: #918aac;
$custom-dark: #000000;

JSON

{
  "hex": "#645c8a",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 138
  },
  "hsl": {
    "h": 250.435,
    "s": 20,
    "l": 45.098
  },
  "oklch": {
    "l": 0.50135,
    "c": 0.07268,
    "h": 291.5
  },
  "luminance": 0.12199
}

Semantic roles & 50–950 ramp

primary

#645C8A

secondary

#A9AE94

accent

#BD6BAE

background

#F9F8FA

surface

#F1F0F4

border

#CBCBCE

text

#0D0B10

muted

#7E7C7F

Preview Lab

Preview with #645C8A

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

Preview Lab → · Contrast checker → · Palette generator →