#645E58#645E58

#645E58 is a mid, near-neutral grey. Relative luminance 0.114; OKLCH L 48.6% C 0.012 H 67.5°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#645E58
RGB	rgb(100, 94, 88)
HSL	hsl(30, 6%, 37%)
HSV	hsv(30, 12%, 39%)
CMYK	cmyk(0%, 6%, 12%, 60.8%)
CIE-LAB	lab(40.28, 1.23, 4.30)
CIE-LCH	lch(40.28, 4.47, 74.06°)
OKLab	oklab(48.56% 0.0047 0.0113)
OKLCH	oklch(48.56% 0.012 67.5)
XYZ	xyz(11.0195, 11.4195, 10.8543)
Luminance	0.1142 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645E58 #585E64

analogous

#645858 #645E58 #646458

triadic

#645E58 #58645E #5E5864

tetradic

#645E58 #586458 #585E64 #645864

square

#645E58 #586458 #585E64 #645864

split-complementary

#645E58 #586464 #585864

monochromatic

#23211F #433F3B #645E58 #857D75 #A29B95

Accessibility & contrast

On white

6.40

#645E58 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#645E58 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645E58

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645E58	#FFFFFF	#000000	##FFFFFF
##645E58	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605E58

Deuteranopia (green-blind)

#625F58

Tritanopia (blue-blind)

#665D5C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #645e58;
/* rgb */ color: rgb(100, 94, 88);
/* oklch */ color: oklch(48.6% 0.012 67.5);

Tailwind

colors: {
  custom: {
    50: '#908b87',
    500: '#645e58',
    950: '#000000',
  },
}

SCSS

$custom: #645e58;
$custom-light: #908b87;
$custom-dark: #000000;

JSON

{
  "hex": "#645e58",
  "rgb": {
    "r": 100,
    "g": 94,
    "b": 88
  },
  "hsl": {
    "h": 30,
    "s": 6.383,
    "l": 36.863
  },
  "oklch": {
    "l": 0.48563,
    "c": 0.0122,
    "h": 67.5
  },
  "luminance": 0.11419
}

Semantic roles & 50–950 ramp

primary

#645E58

secondary

#878C91

accent

#94AF78

background

#F8F8F8

surface

#F0F0EF

border

#CBCBCA

text

#0C0C0B

muted

#7D7D7C

Preview Lab

Preview with #645E58

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

Preview Lab → · Contrast checker → · Palette generator →