#666166#666166

#666166 is a mid, near-neutral grey. Relative luminance 0.123; OKLCH L 49.9% C 0.010 H 325.7°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#666166
RGB	rgb(102, 97, 102)
HSL	hsl(300, 3%, 39%)
HSV	hsv(300, 5%, 40%)
CMYK	cmyk(0%, 4.9%, 0%, 60%)
CIE-LAB	lab(41.74, 3.00, -2.13)
CIE-LCH	lch(41.74, 3.68, 324.70°)
OKLab	oklab(49.89% 0.0083 -0.0056)
OKLCH	oklch(49.89% 0.01 325.7)
XYZ	xyz(12.1521, 12.3335, 14.3082)
Luminance	0.1233 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666166 #616661

analogous

#646166 #666166 #666164

triadic

#666166 #666661 #616666

tetradic

#666166 #666461 #616661 #616466

square

#666166 #666461 #616661 #616466

split-complementary

#666166 #646661 #616664

monochromatic

#272527 #474347 #666166 #857F85 #A39EA3

Accessibility & contrast

On white

6.06

#666166 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#666166 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666166

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666166	#FFFFFF	#000000	##FFFFFF
##666166	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#616266

Deuteranopia (green-blind)

#626366

Tritanopia (blue-blind)

#666163

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #666166;
/* rgb */ color: rgb(102, 97, 102);
/* oklch */ color: oklch(49.9% 0.010 325.7);

Tailwind

colors: {
  custom: {
    50: '#918d91',
    500: '#666166',
    950: '#000000',
  },
}

SCSS

$custom: #666166;
$custom-light: #918d91;
$custom-dark: #000000;

JSON

{
  "hex": "#666166",
  "rgb": {
    "r": 102,
    "g": 97,
    "b": 102
  },
  "hsl": {
    "h": 300,
    "s": 2.513,
    "l": 39.02
  },
  "oklch": {
    "l": 0.4989,
    "c": 0.00998,
    "h": 325.7
  },
  "luminance": 0.12333
}

Semantic roles & 50–950 ramp

primary

#666166

secondary

#8F938F

accent

#AC7C7C

background

#F8F8F8

surface

#F0F0F0

border

#CBCBCB

text

#0C0C0C

muted

#7D7D7D

Preview Lab

Preview with #666166

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

Preview Lab → · Contrast checker → · Palette generator →