#665A64#665A64

#665A64 is a mid, muted grey. Relative luminance 0.111; OKLCH L 48.3% C 0.022 H 331.4°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#665A64
RGB	rgb(102, 90, 100)
HSL	hsl(310, 6%, 38%)
HSV	hsv(310, 12%, 40%)
CMYK	cmyk(0%, 11.8%, 2%, 60%)
CIE-LAB	lab(39.68, 6.85, -3.95)
CIE-LCH	lch(39.68, 7.91, 330.06°)
OKLab	oklab(48.26% 0.0192 -0.0104)
OKLCH	oklch(48.26% 0.022 331.4)
XYZ	xyz(11.4356, 11.0574, 13.5860)
Luminance	0.1106 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665A64 #5A665C

analogous

#625A66 #665A64 #665A5E

triadic

#665A64 #64665A #5A6466

tetradic

#665A64 #66625A #5A665C #5A5E66

square

#665A64 #66625A #5A665C #5A5E66

split-complementary

#665A64 #5E665A #5A6662

monochromatic

#252124 #453D44 #665A64 #877784 #A397A1

Accessibility & contrast

On white

6.54

#665A64 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#665A64 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665A64

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665A64	#FFFFFF	#000000	##FFFFFF
##665A64	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5D64

Deuteranopia (green-blind)

#5C5E64

Tritanopia (blue-blind)

#675B5D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #665a64;
/* rgb */ color: rgb(102, 90, 100);
/* oklch */ color: oklch(48.3% 0.022 331.4);

Tailwind

colors: {
  custom: {
    50: '#918890',
    500: '#665a64',
    950: '#000000',
  },
}

SCSS

$custom: #665a64;
$custom-light: #918890;
$custom-dark: #000000;

JSON

{
  "hex": "#665a64",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 100
  },
  "hsl": {
    "h": 310,
    "s": 6.25,
    "l": 37.647
  },
  "oklch": {
    "l": 0.48258,
    "c": 0.02185,
    "h": 331.4
  },
  "luminance": 0.11057
}

Semantic roles & 50–950 ramp

primary

#665A64

secondary

#89938B

accent

#AF8278

background

#F8F8F8

surface

#F0EFF0

border

#CBCACB

text

#0C0B0C

muted

#7D7C7D

Preview Lab

Preview with #665A64

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

Preview Lab → · Contrast checker → · Palette generator →