#645A67#645A67

#645A67 is a mid, muted grey. Relative luminance 0.110; OKLCH L 48.2% C 0.024 H 318.4°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#645A67
RGB	rgb(100, 90, 103)
HSL	hsl(286, 7%, 38%)
HSV	hsv(286, 13%, 40%)
CMYK	cmyk(2.9%, 12.6%, 0%, 59.6%)
CIE-LAB	lab(39.58, 6.71, -5.96)
CIE-LCH	lch(39.58, 8.97, 318.39°)
OKLab	oklab(48.17% 0.0179 -0.0159)
OKLCH	oklch(48.17% 0.024 318.4)
XYZ	xyz(11.3595, 11.0010, 14.3543)
Luminance	0.1100 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645A67 #5D675A

analogous

#5D5A67 #645A67 #675A63

triadic

#645A67 #67645A #5A6764

tetradic

#645A67 #675D5A #5D675A #5A6367

square

#645A67 #675D5A #5D675A #5A6367

split-complementary

#645A67 #63675A #5A675D

monochromatic

#252126 #443D46 #645A67 #847788 #A197A4

Accessibility & contrast

On white

6.56

#645A67 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#645A67 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645A67

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645A67	#FFFFFF	#000000	##FFFFFF
##645A67	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595D68

Deuteranopia (green-blind)

#5B5E67

Tritanopia (blue-blind)

#645B5E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #645a67;
/* rgb */ color: rgb(100, 90, 103);
/* oklch */ color: oklch(48.2% 0.024 318.4);

Tailwind

colors: {
  custom: {
    50: '#908892',
    500: '#645a67',
    950: '#000000',
  },
}

SCSS

$custom: #645a67;
$custom-light: #908892;
$custom-dark: #000000;

JSON

{
  "hex": "#645a67",
  "rgb": {
    "r": 100,
    "g": 90,
    "b": 103
  },
  "hsl": {
    "h": 286.154,
    "s": 6.736,
    "l": 37.843
  },
  "oklch": {
    "l": 0.48171,
    "c": 0.02398,
    "h": 318.4
  },
  "luminance": 0.11001
}

Semantic roles & 50–950 ramp

primary

#645A67

secondary

#8C9489

accent

#B07885

background

#F8F8F8

surface

#F0EFF0

border

#CBCACB

text

#0C0B0D

muted

#7D7C7D

Preview Lab

Preview with #645A67

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

Preview Lab → · Contrast checker → · Palette generator →