#66631D#66631D

#66631D is a mid, moderate yellow. Relative luminance 0.118; OKLCH L 48.8% C 0.090 H 106.9°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#66631D
RGB	rgb(102, 99, 29)
HSL	hsl(58, 56%, 26%)
HSV	hsv(58, 72%, 40%)
CMYK	cmyk(0%, 2.9%, 71.6%, 60%)
CIE-LAB	lab(40.96, -8.18, 38.39)
CIE-LCH	lch(40.96, 39.26, 102.03°)
OKLab	oklab(48.82% -0.0261 0.086)
OKLCH	oklch(48.82% 0.09 106.9)
XYZ	xyz(10.1635, 11.8375, 2.9117)
Luminance	0.1184 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66631D #1D2066

analogous

#663E1D #66631D #44661D

triadic

#66631D #1D6663 #631D66

tetradic

#66631D #1D663E #1D2066 #661D44

square

#66631D #1D663E #1D2066 #661D44

split-complementary

#66631D #1D4466 #3E1D66

monochromatic

#181707 #36350F #66631D #96912B #C5BF38

Accessibility & contrast

On white

6.24

#66631D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#66631D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66631D

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66631D	#FFFFFF	#000000	##FFFFFF
##66631D	1.00	6.24	3.37	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C5F13

Deuteranopia (green-blind)

#6D6222

Tritanopia (blue-blind)

#6E5C55

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #66631d;
/* rgb */ color: rgb(102, 99, 29);
/* oklch */ color: oklch(48.8% 0.090 106.9);

Tailwind

colors: {
  custom: {
    50: '#948f5e',
    500: '#66631d',
    950: '#000000',
  },
}

SCSS

$custom: #66631d;
$custom-light: #948f5e;
$custom-dark: #000000;

JSON

{
  "hex": "#66631d",
  "rgb": {
    "r": 102,
    "g": 99,
    "b": 29
  },
  "hsl": {
    "h": 57.534,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.48819,
    "c": 0.08991,
    "h": 106.9
  },
  "luminance": 0.11837
}

Semantic roles & 50–950 ramp

primary

#66631D

secondary

#44489B

accent

#4FDF49

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0C04

muted

#7E7D79

Preview Lab

Preview with #66631D

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

Preview Lab → · Contrast checker → · Palette generator →