#645864#645864

#645864 is a mid, muted grey. Relative luminance 0.106; OKLCH L 47.6% C 0.024 H 326.0°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#645864
RGB	rgb(100, 88, 100)
HSL	hsl(300, 6%, 37%)
HSV	hsv(300, 12%, 39%)
CMYK	cmyk(0%, 12%, 0%, 60.8%)
CIE-LAB	lab(38.91, 7.30, -5.10)
CIE-LCH	lch(38.91, 8.90, 325.06°)
OKLab	oklab(47.62% 0.0201 -0.0136)
OKLCH	oklch(47.62% 0.024 326)
XYZ	xyz(11.0452, 10.6090, 13.5200)
Luminance	0.1061 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645864 #586458

analogous

#5E5864 #645864 #64585E

triadic

#645864 #646458 #586464

tetradic

#645864 #645E58 #586458 #585E64

square

#645864 #645E58 #586458 #585E64

split-complementary

#645864 #5E6458 #58645E

monochromatic

#231F23 #433B43 #645864 #857585 #A295A2

Accessibility & contrast

On white

6.73

#645864 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#645864 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645864

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645864	#FFFFFF	#000000	##FFFFFF
##645864	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575B65

Deuteranopia (green-blind)

#5A5C64

Tritanopia (blue-blind)

#65595C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #645864;
/* rgb */ color: rgb(100, 88, 100);
/* oklch */ color: oklch(47.6% 0.024 326.0);

Tailwind

colors: {
  custom: {
    50: '#908790',
    500: '#645864',
    950: '#000000',
  },
}

SCSS

$custom: #645864;
$custom-light: #908790;
$custom-dark: #000000;

JSON

{
  "hex": "#645864",
  "rgb": {
    "r": 100,
    "g": 88,
    "b": 100
  },
  "hsl": {
    "h": 300,
    "s": 6.383,
    "l": 36.863
  },
  "oklch": {
    "l": 0.47617,
    "c": 0.02424,
    "h": 326
  },
  "luminance": 0.10609
}

Semantic roles & 50–950 ramp

primary

#645864

secondary

#879187

accent

#AF7878

background

#F8F8F8

surface

#F0EFF0

border

#CBCACB

text

#0C0B0C

muted

#7D7C7D

Preview Lab

Preview with #645864

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

Preview Lab → · Contrast checker → · Palette generator →