#645C6E#645C6E

#645C6E is a mid, muted violet. Relative luminance 0.115; OKLCH L 48.9% C 0.030 H 305.4°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#645C6E
RGB	rgb(100, 92, 110)
HSL	hsl(267, 9%, 40%)
HSV	hsv(267, 16%, 43%)
CMYK	cmyk(9.1%, 16.4%, 0%, 56.9%)
CIE-LAB	lab(40.39, 7.04, -9.05)
CIE-LCH	lch(40.39, 11.47, 307.86°)
OKLab	oklab(48.88% 0.0174 -0.0244)
OKLCH	oklch(48.88% 0.03 305.4)
XYZ	xyz(11.8966, 11.4894, 16.3398)
Luminance	0.1149 (WCAG relative)
Temperature	neutral
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C6E #666E5C

analogous

#5C5D6E #645C6E #6D5C6E

triadic

#645C6E #6E645C #5C6E64

tetradic

#645C6E #6E5C5D #666E5C #5C6E6D

square

#645C6E #6E5C5D #666E5C #5C6E6D

split-complementary

#645C6E #6E6D5C #5D6E5C

monochromatic

#27242B #46404D #645C6E #82798F #A19AAA

Accessibility & contrast

On white

6.37

#645C6E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#645C6E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C6E

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C6E	#FFFFFF	#000000	##FFFFFF
##645C6E	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595F6F

Deuteranopia (green-blind)

#5A5F6D

Tritanopia (blue-blind)

#635E62

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #645c6e;
/* rgb */ color: rgb(100, 92, 110);
/* oklch */ color: oklch(48.9% 0.030 305.4);

Tailwind

colors: {
  custom: {
    50: '#908a97',
    500: '#645c6e',
    950: '#000000',
  },
}

SCSS

$custom: #645c6e;
$custom-light: #908a97;
$custom-dark: #000000;

JSON

{
  "hex": "#645c6e",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 110
  },
  "hsl": {
    "h": 266.667,
    "s": 8.911,
    "l": 39.608
  },
  "oklch": {
    "l": 0.48881,
    "c": 0.02996,
    "h": 305.4
  },
  "luminance": 0.11489
}

Semantic roles & 50–950 ramp

primary

#645C6E

secondary

#949A8C

accent

#B27697

background

#F8F8F9

surface

#F0F0F2

border

#CBCBCC

text

#0C0B0D

muted

#7D7C7E

Preview Lab

Preview with #645C6E

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

Preview Lab → · Contrast checker → · Palette generator →