#66631C#66631C

#66631C is a mid, moderate yellow. Relative luminance 0.118; OKLCH L 48.8% C 0.091 H 106.9°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#66631C
RGB	rgb(102, 99, 28)
HSL	hsl(58, 57%, 25%)
HSV	hsv(58, 73%, 40%)
CMYK	cmyk(0%, 2.9%, 72.5%, 60%)
CIE-LAB	lab(40.95, -8.24, 38.82)
CIE-LCH	lch(40.95, 39.69, 101.99°)
OKLab	oklab(48.81% -0.0264 0.0867)
OKLCH	oklch(48.81% 0.091 106.9)
XYZ	xyz(10.1513, 11.8326, 2.8476)
Luminance	0.1183 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66631C #1C1F66

analogous

#663E1C #66631C #44661C

triadic

#66631C #1C6663 #631C66

tetradic

#66631C #1C663E #1C1F66 #661C44

square

#66631C #1C663E #1C1F66 #661C44

split-complementary

#66631C #1C4466 #3E1C66

monochromatic

#181707 #36340F #66631C #969229 #C6C036

Accessibility & contrast

On white

6.24

#66631C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#66631C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66631C

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66631C	#FFFFFF	#000000	##FFFFFF
##66631C	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)

#6C5F11

Deuteranopia (green-blind)

#6D6221

Tritanopia (blue-blind)

#6E5C55

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #66631c;
/* rgb */ color: rgb(102, 99, 28);
/* oklch */ color: oklch(48.8% 0.091 106.9);

Tailwind

colors: {
  custom: {
    50: '#948f5d',
    500: '#66631c',
    950: '#000000',
  },
}

SCSS

$custom: #66631c;
$custom-light: #948f5d;
$custom-dark: #000000;

JSON

{
  "hex": "#66631c",
  "rgb": {
    "r": 102,
    "g": 99,
    "b": 28
  },
  "hsl": {
    "h": 57.568,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.48811,
    "c": 0.09067,
    "h": 106.9
  },
  "luminance": 0.11832
}

Semantic roles & 50–950 ramp

primary

#66631C

secondary

#43469B

accent

#4EE048

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0C04

muted

#7E7D79

Preview Lab

Preview with #66631C

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

Preview Lab → · Contrast checker → · Palette generator →