#666B47#666B47

#666B47 is a mid, muted yellow. Relative luminance 0.138; OKLCH L 51.4% C 0.054 H 114.8°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#666B47
RGB	rgb(102, 107, 71)
HSL	hsl(68, 20%, 35%)
HSV	hsv(68, 34%, 42%)
CMYK	cmyk(4.7%, 0%, 33.6%, 58%)
CIE-LAB	lab(43.94, -8.40, 19.58)
CIE-LCH	lch(43.94, 21.31, 113.21°)
OKLab	oklab(51.37% -0.0225 0.0487)
OKLCH	oklch(51.37% 0.054 114.8)
XYZ	xyz(11.8745, 13.7952, 7.9972)
Luminance	0.1379 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666B47 #4C476B

analogous

#6B5E47 #666B47 #546B47

triadic

#666B47 #47666B #6B4766

tetradic

#666B47 #476B5E #4C476B #6B4754

square

#666B47 #476B5E #4C476B #6B4754

split-complementary

#666B47 #47546B #5E476B

monochromatic

#202116 #43462F #666B47 #89905F #A6AB81

Accessibility & contrast

On white

5.59

#666B47 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#666B47 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666B47

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666B47	#FFFFFF	#000000	##FFFFFF
##666B47	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#706845

Deuteranopia (green-blind)

#706849

Tritanopia (blue-blind)

#6A6762

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #666b47;
/* rgb */ color: rgb(102, 107, 71);
/* oklch */ color: oklch(51.4% 0.054 114.8);

Tailwind

colors: {
  custom: {
    50: '#92957a',
    500: '#666b47',
    950: '#000000',
  },
}

SCSS

$custom: #666b47;
$custom-light: #92957a;
$custom-dark: #000000;

JSON

{
  "hex": "#666b47",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 71
  },
  "hsl": {
    "h": 68.333,
    "s": 20.225,
    "l": 34.902
  },
  "oklch": {
    "l": 0.51374,
    "c": 0.05366,
    "h": 114.8
  },
  "luminance": 0.13795
}

Semantic roles & 50–950 ramp

primary

#666B47

secondary

#7B7698

accent

#6BBD76

background

#F9F9F7

surface

#F1F1ED

border

#CBCBC8

text

#0D0D09

muted

#7E7E7B

Preview Lab

Preview with #666B47

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

Preview Lab → · Contrast checker → · Palette generator →