#66644A#66644A

#66644A is a mid, muted yellow. Relative luminance 0.124; OKLCH L 49.8% C 0.039 H 104.1°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#66644A
RGB	rgb(102, 100, 74)
HSL	hsl(56, 16%, 35%)
HSV	hsv(56, 27%, 40%)
CMYK	cmyk(0%, 2%, 27.5%, 60%)
CIE-LAB	lab(41.90, -3.90, 15.08)
CIE-LCH	lch(41.90, 15.57, 104.49°)
OKLab	oklab(49.77% -0.0095 0.0381)
OKLCH	oklch(49.77% 0.039 104.1)
XYZ	xyz(11.2727, 12.4337, 8.2834)
Luminance	0.1243 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66644A #4A4C66

analogous

#66564A #66644A #5A664A

triadic

#66644A #4A6664 #644A66

tetradic

#66644A #4A6656 #4A4C66 #664A5A

square

#66644A #4A6656 #4A4C66 #664A5A

split-complementary

#66644A #4A5A66 #564A66

monochromatic

#1F1E17 #434130 #66644A #898764 #A6A484

Accessibility & contrast

On white

6.02

#66644A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#66644A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66644A

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66644A	#FFFFFF	#000000	##FFFFFF
##66644A	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696248

Deuteranopia (green-blind)

#6A644B

Tritanopia (blue-blind)

#6A615D

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #66644a;
/* rgb */ color: rgb(102, 100, 74);
/* oklch */ color: oklch(49.8% 0.039 104.1);

Tailwind

colors: {
  custom: {
    50: '#92907c',
    500: '#66644a',
    950: '#000000',
  },
}

SCSS

$custom: #66644a;
$custom-light: #92907c;
$custom-dark: #000000;

JSON

{
  "hex": "#66644a",
  "rgb": {
    "r": 102,
    "g": 100,
    "b": 74
  },
  "hsl": {
    "h": 55.714,
    "s": 15.909,
    "l": 34.51
  },
  "oklch": {
    "l": 0.49774,
    "c": 0.03924,
    "h": 104.1
  },
  "luminance": 0.12434
}

Semantic roles & 50–950 ramp

primary

#66644A

secondary

#787A93

accent

#74B96F

background

#F9F8F7

surface

#F1F0EE

border

#CBCBC9

text

#0D0C09

muted

#7E7D7B

Preview Lab

Preview with #66644A

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

Preview Lab → · Contrast checker → · Palette generator →