#666E60#666E60

#666E60 is a mid, muted grey. Relative luminance 0.148; OKLCH L 52.7% C 0.024 H 131.7°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#666E60
RGB	rgb(102, 110, 96)
HSL	hsl(94, 7%, 40%)
HSV	hsv(94, 13%, 43%)
CMYK	cmyk(7.3%, 0%, 12.7%, 56.9%)
CIE-LAB	lab(45.39, -5.89, 6.78)
CIE-LCH	lch(45.39, 8.98, 131.01°)
OKLab	oklab(52.71% -0.0157 0.0176)
OKLCH	oklch(52.71% 0.024 131.7)
XYZ	xyz(13.1664, 14.8211, 13.2312)
Luminance	0.1482 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666E60 #68606E

analogous

#6D6E60 #666E60 #606E61

triadic

#666E60 #60666E #6E6066

tetradic

#666E60 #606D6E #68606E #6E6160

square

#666E60 #606D6E #68606E #6E6160

split-complementary

#666E60 #61606E #6E606D

monochromatic

#292D27 #484D43 #666E60 #848E7D #A3AA9E

Accessibility & contrast

On white

5.30

#666E60 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#666E60 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666E60

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666E60	#FFFFFF	#000000	##FFFFFF
##666E60	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F6C5F

Deuteranopia (green-blind)

#6E6B61

Tritanopia (blue-blind)

#666D6A

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #666e60;
/* rgb */ color: rgb(102, 110, 96);
/* oklch */ color: oklch(52.7% 0.024 131.7);

Tailwind

colors: {
  custom: {
    50: '#91978d',
    500: '#666e60',
    950: '#000000',
  },
}

SCSS

$custom: #666e60;
$custom-light: #91978d;
$custom-dark: #000000;

JSON

{
  "hex": "#666e60",
  "rgb": {
    "r": 102,
    "g": 110,
    "b": 96
  },
  "hsl": {
    "h": 94.286,
    "s": 6.796,
    "l": 40.392
  },
  "oklch": {
    "l": 0.52706,
    "c": 0.02356,
    "h": 131.7
  },
  "luminance": 0.14821
}

Semantic roles & 50–950 ramp

primary

#666E60

secondary

#96909A

accent

#78B098

background

#F8F9F8

surface

#F0F2F0

border

#CBCCCB

text

#0C0D0C

muted

#7D7E7D

Preview Lab

Preview with #666E60

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

Preview Lab → · Contrast checker → · Palette generator →