#645A60#645A60

#645A60 is a mid, near-neutral grey. Relative luminance 0.109; OKLCH L 47.9% C 0.016 H 341.0°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#645A60
RGB	rgb(100, 90, 96)
HSL	hsl(324, 5%, 37%)
HSV	hsv(324, 10%, 39%)
CMYK	cmyk(0%, 10%, 4%, 60.8%)
CIE-LAB	lab(39.35, 5.23, -1.97)
CIE-LCH	lch(39.35, 5.59, 339.34°)
OKLab	oklab(47.92% 0.015 -0.0052)
OKLCH	oklch(47.92% 0.016 341)
XYZ	xyz(11.0228, 10.8663, 12.5808)
Luminance	0.1087 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A60 #5A645E

analogous

#635A64 #645A60 #645A5B

triadic

#645A60 #60645A #5A6064

tetradic

#645A60 #64635A #5A645E #5A5B64

square

#645A60 #64635A #5A645E #5A5B64

split-complementary

#645A60 #5B645A #5A6463

monochromatic

#242022 #443D41 #645A60 #84777F #A1979D

Accessibility & contrast

On white

6.62

#645A60 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#645A60 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A60

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A60	#FFFFFF	#000000	##FFFFFF
##645A60	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5C60

Deuteranopia (green-blind)

#5C5D60

Tritanopia (blue-blind)

#655A5C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645a60;
/* rgb */ color: rgb(100, 90, 96);
/* oklch */ color: oklch(47.9% 0.016 341.0);

Tailwind

colors: {
  custom: {
    50: '#90888d',
    500: '#645a60',
    950: '#000000',
  },
}

SCSS

$custom: #645a60;
$custom-light: #90888d;
$custom-dark: #000000;

JSON

{
  "hex": "#645a60",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 96
  },
  "hsl": {
    "h": 324,
    "s": 5.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.47918,
    "c": 0.01588,
    "h": 341
  },
  "luminance": 0.10866
}

Semantic roles & 50–950 ramp

primary

#645A60

secondary

#89918C

accent

#AE8F79

background

#F8F8F8

surface

#F0EFF0

border

#CBCACB

text

#0C0B0C

muted

#7D7C7D

Preview Lab

Preview with #645A60

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

Preview Lab → · Contrast checker → · Palette generator →