#666A5E#666A5E

#666A5E is a mid, near-neutral grey. Relative luminance 0.139; OKLCH L 51.7% C 0.019 H 122.1°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#666A5E
RGB	rgb(102, 106, 94)
HSL	hsl(80, 6%, 39%)
HSV	hsv(80, 11%, 42%)
CMYK	cmyk(3.8%, 0%, 11.3%, 58.4%)
CIE-LAB	lab(44.15, -3.95, 6.21)
CIE-LCH	lch(44.15, 7.36, 122.47°)
OKLab	oklab(51.71% -0.0101 0.0162)
OKLCH	oklch(51.71% 0.019 122.1)
XYZ	xyz(12.6536, 13.9410, 12.6118)
Luminance	0.1394 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666A5E #625E6A

analogous

#6A685E #666A5E #606A5E

triadic

#666A5E #5E666A #6A5E66

tetradic

#666A5E #5E6A68 #625E6A #6A5E60

square

#666A5E #5E6A68 #625E6A #6A5E60

split-complementary

#666A5E #5E606A #685E6A

monochromatic

#282924 #474A41 #666A5E #858A7B #A3A79C

Accessibility & contrast

On white

5.54

#666A5E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#666A5E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A5E

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666A5E	#FFFFFF	#000000	##FFFFFF
##666A5E	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C685D

Deuteranopia (green-blind)

#6B685E

Tritanopia (blue-blind)

#676967

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666a5e;
/* rgb */ color: rgb(102, 106, 94);
/* oklch */ color: oklch(51.7% 0.019 122.1);

Tailwind

colors: {
  custom: {
    50: '#91948b',
    500: '#666a5e',
    950: '#000000',
  },
}

SCSS

$custom: #666a5e;
$custom-light: #91948b;
$custom-dark: #000000;

JSON

{
  "hex": "#666a5e",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 94
  },
  "hsl": {
    "h": 80,
    "s": 6,
    "l": 39.216
  },
  "oklch": {
    "l": 0.51708,
    "c": 0.01907,
    "h": 122.1
  },
  "luminance": 0.13941
}

Semantic roles & 50–950 ramp

primary

#666A5E

secondary

#908D96

accent

#79AF8B

background

#F8F9F8

surface

#F0F1F0

border

#CBCBCB

text

#0C0D0C

muted

#7D7E7D

Preview Lab

Preview with #666A5E

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

Preview Lab → · Contrast checker → · Palette generator →