#645C58#645C58

#645C58 is a mid, near-neutral grey. Relative luminance 0.111; OKLCH L 48.1% C 0.012 H 48.5°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#645C58
RGB	rgb(100, 92, 88)
HSL	hsl(20, 6%, 37%)
HSV	hsv(20, 12%, 39%)
CMYK	cmyk(0%, 8%, 12%, 60.8%)
CIE-LAB	lab(39.70, 2.44, 3.46)
CIE-LCH	lch(39.70, 4.23, 54.82°)
OKLab	oklab(48.11% 0.0081 0.0091)
OKLCH	oklch(48.11% 0.012 48.5)
XYZ	xyz(10.8440, 11.0684, 10.7958)
Luminance	0.1107 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645C58 #586064

analogous

#64585A #645C58 #646258

triadic

#645C58 #58645C #5C5864

tetradic

#645C58 #5A6458 #586064 #625864

square

#645C58 #5A6458 #586064 #625864

split-complementary

#645C58 #586462 #585A64

monochromatic

#23201F #433E3B #645C58 #857A75 #A29995

Accessibility & contrast

On white

6.53

#645C58 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#645C58 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645C58

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645C58	#FFFFFF	#000000	##FFFFFF
##645C58	1.00	6.53	3.21	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5D58

Deuteranopia (green-blind)

#605E58

Tritanopia (blue-blind)

#675B5B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645c58;
/* rgb */ color: rgb(100, 92, 88);
/* oklch */ color: oklch(48.1% 0.012 48.5);

Tailwind

colors: {
  custom: {
    50: '#908a87',
    500: '#645c58',
    950: '#000000',
  },
}

SCSS

$custom: #645c58;
$custom-light: #908a87;
$custom-dark: #000000;

JSON

{
  "hex": "#645c58",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 88
  },
  "hsl": {
    "h": 20,
    "s": 6.383,
    "l": 36.863
  },
  "oklch": {
    "l": 0.48106,
    "c": 0.01217,
    "h": 48.5
  },
  "luminance": 0.11068
}

Semantic roles & 50–950 ramp

primary

#645C58

secondary

#878E91

accent

#9DAF78

background

#F8F8F8

surface

#F0F0EF

border

#CBCBCA

text

#0C0B0B

muted

#7D7C7C

Preview Lab

Preview with #645C58

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

Preview Lab → · Contrast checker → · Palette generator →