#666B1D#666B1D

#666B1D is a mid, moderate yellow. Relative luminance 0.134; OKLCH L 50.8% C 0.099 H 113.0°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#666B1D
RGB	rgb(102, 107, 29)
HSL	hsl(64, 57%, 27%)
HSV	hsv(64, 73%, 42%)
CMYK	cmyk(4.7%, 0%, 72.9%, 58%)
CIE-LAB	lab(43.40, -12.69, 40.85)
CIE-LCH	lch(43.40, 42.77, 107.25°)
OKLab	oklab(50.77% -0.0388 0.0912)
OKLCH	oklch(50.77% 0.099 113)
XYZ	xyz(10.9593, 13.4291, 3.1769)
Luminance	0.1343 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666B1D #221D6B

analogous

#6B491D #666B1D #3F6B1D

triadic

#666B1D #1D666B #6B1D66

tetradic

#666B1D #1D6B49 #221D6B #6B1D3F

square

#666B1D #1D6B49 #221D6B #6B1D3F

split-complementary

#666B1D #1D3F6B #491D6B

monochromatic

#171807 #383B10 #666B1D #949B2A #C0C939

Accessibility & contrast

On white

5.70

#666B1D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#666B1D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666B1D

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666B1D	#FFFFFF	#000000	##FFFFFF
##666B1D	1.00	5.70	3.69	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#736610

Deuteranopia (green-blind)

#736723

Tritanopia (blue-blind)

#6D645C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #666b1d;
/* rgb */ color: rgb(102, 107, 29);
/* oklch */ color: oklch(50.8% 0.099 113.0);

Tailwind

colors: {
  custom: {
    50: '#94955f',
    500: '#666b1d',
    950: '#000000',
  },
}

SCSS

$custom: #666b1d;
$custom-light: #94955f;
$custom-dark: #000000;

JSON

{
  "hex": "#666b1d",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 29
  },
  "hsl": {
    "h": 63.846,
    "s": 57.353,
    "l": 26.667
  },
  "oklch": {
    "l": 0.50773,
    "c": 0.09909,
    "h": 113
  },
  "luminance": 0.13429
}

Semantic roles & 50–950 ramp

primary

#666B1D

secondary

#4A44A0

accent

#47E151

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #666B1D

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

Preview Lab → · Contrast checker → · Palette generator →