#666E1D#666E1D

#666E1D is a mid, moderate yellow. Relative luminance 0.141; OKLCH L 51.5% C 0.103 H 115.0°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#666E1D
RGB	rgb(102, 110, 29)
HSL	hsl(66, 58%, 27%)
HSV	hsv(66, 74%, 43%)
CMYK	cmyk(7.3%, 0%, 73.6%, 56.9%)
CIE-LAB	lab(44.33, -14.33, 41.76)
CIE-LCH	lch(44.33, 44.15, 108.94°)
OKLab	oklab(51.51% -0.0434 0.0931)
OKLCH	oklch(51.51% 0.103 115)
XYZ	xyz(11.2775, 14.0655, 3.2830)
Luminance	0.1406 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666E1D #251D6E

analogous

#6E4E1D #666E1D #3E6E1D

triadic

#666E1D #1D666E #6E1D66

tetradic

#666E1D #1D6E4E #251D6E #6E1D3E

square

#666E1D #1D6E4E #251D6E #6E1D3E

split-complementary

#666E1D #1D3E6E #4E1D6E

monochromatic

#161806 #393E10 #666E1D #939E2A #BDCB3A

Accessibility & contrast

On white

5.51

#666E1D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#666E1D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666E1D

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666E1D	#FFFFFF	#000000	##FFFFFF
##666E1D	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#76680F

Deuteranopia (green-blind)

#766923

Tritanopia (blue-blind)

#6D675E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #666e1d;
/* rgb */ color: rgb(102, 110, 29);
/* oklch */ color: oklch(51.5% 0.103 115.0);

Tailwind

colors: {
  custom: {
    50: '#94975f',
    500: '#666e1d',
    950: '#000000',
  },
}

SCSS

$custom: #666e1d;
$custom-light: #94975f;
$custom-dark: #000000;

JSON

{
  "hex": "#666e1d",
  "rgb": {
    "r": 102,
    "g": 110,
    "b": 29
  },
  "hsl": {
    "h": 65.926,
    "s": 58.273,
    "l": 27.255
  },
  "oklch": {
    "l": 0.51514,
    "c": 0.10273,
    "h": 115
  },
  "luminance": 0.14065
}

Semantic roles & 50–950 ramp

primary

#666E1D

secondary

#4E44A2

accent

#46E156

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #666E1D

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

Preview Lab → · Contrast checker → · Palette generator →