#66645F#66645F

#66645F is a mid, near-neutral grey. Relative luminance 0.128; OKLCH L 50.3% C 0.008 H 88.7°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#66645F
RGB	rgb(102, 100, 95)
HSL	hsl(43, 4%, 39%)
HSV	hsv(43, 7%, 40%)
CMYK	cmyk(0%, 2%, 6.9%, 60%)
CIE-LAB	lab(42.41, -0.22, 3.11)
CIE-LCH	lch(42.41, 3.12, 93.98°)
OKLab	oklab(50.35% 0.0002 0.0082)
OKLCH	oklch(50.35% 0.008 88.7)
XYZ	xyz(12.1019, 12.7654, 12.6507)
Luminance	0.1277 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66645F #5F6166

analogous

#66605F #66645F #64665F

triadic

#66645F #5F6664 #645F66

tetradic

#66645F #5F6660 #5F6166 #665F64

square

#66645F #5F6660 #5F6166 #665F64

split-complementary

#66645F #5F6466 #605F66

monochromatic

#272624 #464541 #66645F #86837D #A3A19C

Accessibility & contrast

On white

5.91

#66645F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#66645F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66645F

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66645F	#FFFFFF	#000000	##FFFFFF
##66645F	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#65645F

Deuteranopia (green-blind)

#66645F

Tritanopia (blue-blind)

#676363

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #66645f;
/* rgb */ color: rgb(102, 100, 95);
/* oklch */ color: oklch(50.3% 0.008 88.7);

Tailwind

colors: {
  custom: {
    50: '#91908c',
    500: '#66645f',
    950: '#000000',
  },
}

SCSS

$custom: #66645f;
$custom-light: #91908c;
$custom-dark: #000000;

JSON

{
  "hex": "#66645f",
  "rgb": {
    "r": 102,
    "g": 100,
    "b": 95
  },
  "hsl": {
    "h": 42.857,
    "s": 3.553,
    "l": 38.627
  },
  "oklch": {
    "l": 0.50345,
    "c": 0.00818,
    "h": 88.7
  },
  "luminance": 0.12765
}

Semantic roles & 50–950 ramp

primary

#66645F

secondary

#8E8F93

accent

#89AD7B

background

#F8F8F8

surface

#F0F0F0

border

#CBCBCB

text

#0C0C0C

muted

#7D7D7D

Preview Lab

Preview with #66645F

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

Preview Lab → · Contrast checker → · Palette generator →