#666B4F#666B4F

#666B4F is a mid, muted yellow-green. Relative luminance 0.139; OKLCH L 51.6% C 0.043 H 116.1°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#666B4F
RGB	rgb(102, 107, 79)
HSL	hsl(71, 15%, 36%)
HSV	hsv(71, 26%, 42%)
CMYK	cmyk(4.7%, 0%, 26.2%, 58%)
CIE-LAB	lab(44.10, -7.17, 15.10)
CIE-LCH	lch(44.10, 16.71, 115.41°)
OKLab	oklab(51.55% -0.0187 0.0382)
OKLCH	oklch(51.55% 0.043 116.1)
XYZ	xyz(12.1484, 13.9048, 9.4395)
Luminance	0.1391 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666B4F #544F6B

analogous

#6B624F #666B4F #586B4F

triadic

#666B4F #4F666B #6B4F66

tetradic

#666B4F #4F6B62 #544F6B #6B4F58

square

#666B4F #4F6B62 #544F6B #6B4F58

split-complementary

#666B4F #4F586B #624F6B

monochromatic

#23251B #444835 #666B4F #888E69 #A4A98B

Accessibility & contrast

On white

5.55

#666B4F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#666B4F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666B4F

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666B4F	#FFFFFF	#000000	##FFFFFF
##666B4F	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F684D

Deuteranopia (green-blind)

#6F6850

Tritanopia (blue-blind)

#696863

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666b4f;
/* rgb */ color: rgb(102, 107, 79);
/* oklch */ color: oklch(51.6% 0.043 116.1);

Tailwind

colors: {
  custom: {
    50: '#929580',
    500: '#666b4f',
    950: '#000000',
  },
}

SCSS

$custom: #666b4f;
$custom-light: #929580;
$custom-dark: #000000;

JSON

{
  "hex": "#666b4f",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 79
  },
  "hsl": {
    "h": 70.714,
    "s": 15.054,
    "l": 36.471
  },
  "oklch": {
    "l": 0.51551,
    "c": 0.04255,
    "h": 116.1
  },
  "luminance": 0.13905
}

Semantic roles & 50–950 ramp

primary

#666B4F

secondary

#837F97

accent

#70B87D

background

#F8F9F7

surface

#F0F1EE

border

#CBCBC9

text

#0D0D0A

muted

#7D7E7C

Preview Lab

Preview with #666B4F

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

Preview Lab → · Contrast checker → · Palette generator →