#66645A#66645A

#66645A is a mid, near-neutral grey. Relative luminance 0.127; OKLCH L 50.2% C 0.016 H 97.6°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#66645A
RGB	rgb(102, 100, 90)
HSL	hsl(50, 6%, 38%)
HSV	hsv(50, 12%, 40%)
CMYK	cmyk(0%, 2%, 11.8%, 60%)
CIE-LAB	lab(42.27, -1.17, 5.95)
CIE-LCH	lch(42.27, 6.07, 101.12°)
OKLab	oklab(50.19% -0.0021 0.0155)
OKLCH	oklch(50.19% 0.016 97.6)
XYZ	xyz(11.8819, 12.6774, 11.4919)
Luminance	0.1268 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66645A #5A5C66

analogous

#665E5A #66645A #62665A

triadic

#66645A #5A6664 #645A66

tetradic

#66645A #5A665E #5A5C66 #665A62

square

#66645A #5A665E #5A5C66 #665A62

split-complementary

#66645A #5A6266 #5E5A66

monochromatic

#252421 #45443D #66645A #878477 #A3A197

Accessibility & contrast

On white

5.94

#66645A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#66645A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66645A

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66645A	#FFFFFF	#000000	##FFFFFF
##66645A	1.00	5.94	3.54	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#666359

Deuteranopia (green-blind)

#67645A

Tritanopia (blue-blind)

#686261

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #66645a;
/* rgb */ color: rgb(102, 100, 90);
/* oklch */ color: oklch(50.2% 0.016 97.6);

Tailwind

colors: {
  custom: {
    50: '#919088',
    500: '#66645a',
    950: '#000000',
  },
}

SCSS

$custom: #66645a;
$custom-light: #919088;
$custom-dark: #000000;

JSON

{
  "hex": "#66645a",
  "rgb": {
    "r": 102,
    "g": 100,
    "b": 90
  },
  "hsl": {
    "h": 50,
    "s": 6.25,
    "l": 37.647
  },
  "oklch": {
    "l": 0.50194,
    "c": 0.01566,
    "h": 97.6
  },
  "luminance": 0.12677
}

Semantic roles & 50–950 ramp

primary

#66645A

secondary

#898B93

accent

#82AF78

background

#F8F8F8

surface

#F0F0EF

border

#CBCBCA

text

#0C0C0B

muted

#7D7D7C

Preview Lab

Preview with #66645A

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

Preview Lab → · Contrast checker → · Palette generator →