#645A62#645A62

#645A62 is a mid, near-neutral grey. Relative luminance 0.109; OKLCH L 48.0% C 0.018 H 332.5°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#645A62
RGB	rgb(100, 90, 98)
HSL	hsl(312, 5%, 37%)
HSV	hsv(312, 10%, 39%)
CMYK	cmyk(0%, 10%, 2%, 60.8%)
CIE-LAB	lab(39.42, 5.65, -3.12)
CIE-LCH	lch(39.42, 6.45, 331.11°)
OKLab	oklab(47.99% 0.0159 -0.0082)
OKLCH	oklch(47.99% 0.018 332.5)
XYZ	xyz(11.1160, 10.9036, 13.0719)
Luminance	0.1090 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A62 #5A645C

analogous

#615A64 #645A62 #645A5D

triadic

#645A62 #62645A #5A6264

tetradic

#645A62 #64615A #5A645C #5A5D64

square

#645A62 #64615A #5A645C #5A5D64

split-complementary

#645A62 #5D645A #5A6461

monochromatic

#242023 #443D42 #645A62 #847782 #A1979F

Accessibility & contrast

On white

6.60

#645A62 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#645A62 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A62

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A62	#FFFFFF	#000000	##FFFFFF
##645A62	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5C62

Deuteranopia (green-blind)

#5C5D62

Tritanopia (blue-blind)

#655A5D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645a62;
/* rgb */ color: rgb(100, 90, 98);
/* oklch */ color: oklch(48.0% 0.018 332.5);

Tailwind

colors: {
  custom: {
    50: '#90888e',
    500: '#645a62',
    950: '#000000',
  },
}

SCSS

$custom: #645a62;
$custom-light: #90888e;
$custom-dark: #000000;

JSON

{
  "hex": "#645a62",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 98
  },
  "hsl": {
    "h": 312,
    "s": 5.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.47988,
    "c": 0.01787,
    "h": 332.5
  },
  "luminance": 0.10903
}

Semantic roles & 50–950 ramp

primary

#645A62

secondary

#89918A

accent

#AE8479

background

#F8F8F8

surface

#F0EFF0

border

#CBCACB

text

#0C0B0C

muted

#7D7C7D

Preview Lab

Preview with #645A62

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

Preview Lab → · Contrast checker → · Palette generator →