#666B4E#666B4E

#666B4E is a mid, muted yellow-green. Relative luminance 0.139; OKLCH L 51.5% C 0.044 H 115.9°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#666B4E
RGB	rgb(102, 107, 78)
HSL	hsl(70, 16%, 36%)
HSV	hsv(70, 27%, 42%)
CMYK	cmyk(4.7%, 0%, 27.1%, 58%)
CIE-LAB	lab(44.08, -7.33, 15.66)
CIE-LCH	lch(44.08, 17.29, 115.09°)
OKLab	oklab(51.53% -0.0192 0.0395)
OKLCH	oklch(51.53% 0.044 115.9)
XYZ	xyz(12.1123, 13.8903, 9.2493)
Luminance	0.1389 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666B4E #534E6B

analogous

#6B624E #666B4E #586B4E

triadic

#666B4E #4E666B #6B4E66

tetradic

#666B4E #4E6B62 #534E6B #6B4E58

square

#666B4E #4E6B62 #534E6B #6B4E58

split-complementary

#666B4E #4E586B #624E6B

monochromatic

#23241A #444834 #666B4E #888E68 #A4AA8A

Accessibility & contrast

On white

5.56

#666B4E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#666B4E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666B4E

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666B4E	#FFFFFF	#000000	##FFFFFF
##666B4E	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F684C

Deuteranopia (green-blind)

#6F684F

Tritanopia (blue-blind)

#696863

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666b4e;
/* rgb */ color: rgb(102, 107, 78);
/* oklch */ color: oklch(51.5% 0.044 115.9);

Tailwind

colors: {
  custom: {
    50: '#92957f',
    500: '#666b4e',
    950: '#000000',
  },
}

SCSS

$custom: #666b4e;
$custom-light: #92957f;
$custom-dark: #000000;

JSON

{
  "hex": "#666b4e",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 78
  },
  "hsl": {
    "h": 70.345,
    "s": 15.676,
    "l": 36.275
  },
  "oklch": {
    "l": 0.51528,
    "c": 0.04396,
    "h": 115.9
  },
  "luminance": 0.1389
}

Semantic roles & 50–950 ramp

primary

#666B4E

secondary

#827E97

accent

#6FB87C

background

#F8F9F7

surface

#F0F1EE

border

#CBCBC9

text

#0D0D0A

muted

#7D7E7C

Preview Lab

Preview with #666B4E

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

Preview Lab → · Contrast checker → · Palette generator →