#66631F#66631F

#66631F is a mid, moderate yellow. Relative luminance 0.118; OKLCH L 48.8% C 0.088 H 106.8°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#66631F
RGB	rgb(102, 99, 31)
HSL	hsl(57, 53%, 26%)
HSV	hsv(57, 70%, 40%)
CMYK	cmyk(0%, 2.9%, 69.6%, 60%)
CIE-LAB	lab(40.97, -8.05, 37.51)
CIE-LCH	lch(40.97, 38.37, 102.12°)
OKLab	oklab(48.84% -0.0255 0.0845)
OKLCH	oklch(48.84% 0.088 106.8)
XYZ	xyz(10.1890, 11.8477, 3.0462)
Luminance	0.1185 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66631F #1F2266

analogous

#663F1F #66631F #45661F

triadic

#66631F #1F6663 #631F66

tetradic

#66631F #1F663F #1F2266 #661F45

square

#66631F #1F663F #1F2266 #661F45

split-complementary

#66631F #1F4566 #3F1F66

monochromatic

#171707 #373511 #66631F #95912D #C4BE3C

Accessibility & contrast

On white

6.23

#66631F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#66631F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66631F

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

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

#6C5F16

Deuteranopia (green-blind)

#6D6223

Tritanopia (blue-blind)

#6E5C55

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #66631f;
/* rgb */ color: rgb(102, 99, 31);
/* oklch */ color: oklch(48.8% 0.088 106.8);

Tailwind

colors: {
  custom: {
    50: '#948f5f',
    500: '#66631f',
    950: '#000000',
  },
}

SCSS

$custom: #66631f;
$custom-light: #948f5f;
$custom-dark: #000000;

JSON

{
  "hex": "#66631f",
  "rgb": {
    "r": 102,
    "g": 99,
    "b": 31
  },
  "hsl": {
    "h": 57.465,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.48838,
    "c": 0.08831,
    "h": 106.8
  },
  "luminance": 0.11847
}

Semantic roles & 50–950 ramp

primary

#66631F

secondary

#464A9A

accent

#51DD4B

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0D0C05

muted

#7E7D79

Preview Lab

Preview with #66631F

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

Preview Lab → · Contrast checker → · Palette generator →