#66631E#66631E

#66631E is a mid, moderate yellow. Relative luminance 0.118; OKLCH L 48.8% C 0.089 H 106.8°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#66631E
RGB	rgb(102, 99, 30)
HSL	hsl(58, 55%, 26%)
HSV	hsv(58, 71%, 40%)
CMYK	cmyk(0%, 2.9%, 70.6%, 60%)
CIE-LAB	lab(40.96, -8.12, 37.96)
CIE-LCH	lch(40.96, 38.82, 102.07°)
OKLab	oklab(48.83% -0.0258 0.0853)
OKLCH	oklch(48.83% 0.089 106.8)
XYZ	xyz(10.1760, 11.8425, 2.9778)
Luminance	0.1184 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66631E #1E2166

analogous

#663F1E #66631E #45661E

triadic

#66631E #1E6663 #631E66

tetradic

#66631E #1E663F #1E2166 #661E45

square

#66631E #1E663F #1E2166 #661E45

split-complementary

#66631E #1E4566 #3F1E66

monochromatic

#181707 #373510 #66631E #95912C #C5BF3A

Accessibility & contrast

On white

6.23

#66631E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#66631E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66631E

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66631E	#FFFFFF	#000000	##FFFFFF
##66631E	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C5F14

Deuteranopia (green-blind)

#6D6222

Tritanopia (blue-blind)

#6E5C55

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #66631e;
/* rgb */ color: rgb(102, 99, 30);
/* oklch */ color: oklch(48.8% 0.089 106.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#66631e",
  "rgb": {
    "r": 102,
    "g": 99,
    "b": 30
  },
  "hsl": {
    "h": 57.5,
    "s": 54.545,
    "l": 25.882
  },
  "oklch": {
    "l": 0.48828,
    "c": 0.08912,
    "h": 106.8
  },
  "luminance": 0.11842
}

Semantic roles & 50–950 ramp

primary

#66631E

secondary

#45499B

accent

#50DE4A

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0C05

muted

#7E7D79

Preview Lab

Preview with #66631E

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

Preview Lab → · Contrast checker → · Palette generator →