#66664C#66664C

#66664C is a mid, muted yellow. Relative luminance 0.128; OKLCH L 50.3% C 0.039 H 107.7°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#66664C
RGB	rgb(102, 102, 76)
HSL	hsl(60, 15%, 35%)
HSV	hsv(60, 25%, 40%)
CMYK	cmyk(0%, 0%, 25.5%, 60%)
CIE-LAB	lab(42.54, -4.76, 14.75)
CIE-LCH	lch(42.54, 15.50, 107.87°)
OKLab	oklab(50.29% -0.0119 0.0373)
OKLCH	oklch(50.29% 0.039 107.7)
XYZ	xyz(11.5353, 12.8495, 8.7086)
Luminance	0.1285 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66664C #4C4C66

analogous

#66594C #66664C #59664C

triadic

#66664C #4C6666 #664C66

tetradic

#66664C #4C6659 #4C4C66 #664C59

square

#66664C #4C6659 #4C4C66 #664C59

split-complementary

#66664C #4C5966 #594C66

monochromatic

#202018 #434332 #66664C #898966 #A6A687

Accessibility & contrast

On white

5.88

#66664C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#66664C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66664C

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66664C	#FFFFFF	#000000	##FFFFFF
##66664C	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A644A

Deuteranopia (green-blind)

#6B654D

Tritanopia (blue-blind)

#6A635F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #66664c;
/* rgb */ color: rgb(102, 102, 76);
/* oklch */ color: oklch(50.3% 0.039 107.7);

Tailwind

colors: {
  custom: {
    50: '#92917e',
    500: '#66664c',
    950: '#000000',
  },
}

SCSS

$custom: #66664c;
$custom-light: #92917e;
$custom-dark: #000000;

JSON

{
  "hex": "#66664c",
  "rgb": {
    "r": 102,
    "g": 102,
    "b": 76
  },
  "hsl": {
    "h": 60,
    "s": 14.607,
    "l": 34.902
  },
  "oklch": {
    "l": 0.50293,
    "c": 0.03918,
    "h": 107.7
  },
  "luminance": 0.12849
}

Semantic roles & 50–950 ramp

primary

#66664C

secondary

#7B7B93

accent

#70B770

background

#F8F8F7

surface

#F0F0EE

border

#CBCBC9

text

#0D0C0A

muted

#7D7D7C

Preview Lab

Preview with #66664C

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

Preview Lab → · Contrast checker → · Palette generator →