#666C1C#666C1C

#666C1C is a mid, moderate yellow. Relative luminance 0.136; OKLCH L 51.0% C 0.101 H 113.7°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#666C1C
RGB	rgb(102, 108, 28)
HSL	hsl(65, 59%, 27%)
HSV	hsv(65, 74%, 42%)
CMYK	cmyk(5.6%, 0%, 74.1%, 57.6%)
CIE-LAB	lab(43.70, -13.30, 41.55)
CIE-LCH	lch(43.70, 43.63, 107.74°)
OKLab	oklab(51.01% -0.0406 0.0925)
OKLCH	oklch(51.01% 0.101 113.7)
XYZ	xyz(11.0520, 13.6340, 3.1478)
Luminance	0.1363 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666C1C #221C6C

analogous

#6C4A1C #666C1C #3E6C1C

triadic

#666C1C #1C666C #6C1C66

tetradic

#666C1C #1C6C4A #221C6C #6C1C3E

square

#666C1C #1C6C4A #221C6C #6C1C3E

split-complementary

#666C1C #1C3E6C #4A1C6C

monochromatic

#171806 #383B0F #666C1C #949D29 #C0CB37

Accessibility & contrast

On white

5.63

#666C1C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#666C1C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666C1C

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666C1C	#FFFFFF	#000000	##FFFFFF
##666C1C	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#74670E

Deuteranopia (green-blind)

#746822

Tritanopia (blue-blind)

#6D655C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #666c1c;
/* rgb */ color: rgb(102, 108, 28);
/* oklch */ color: oklch(51.0% 0.101 113.7);

Tailwind

colors: {
  custom: {
    50: '#94965e',
    500: '#666c1c',
    950: '#000000',
  },
}

SCSS

$custom: #666c1c;
$custom-light: #94965e;
$custom-dark: #000000;

JSON

{
  "hex": "#666c1c",
  "rgb": {
    "r": 102,
    "g": 108,
    "b": 28
  },
  "hsl": {
    "h": 64.5,
    "s": 58.824,
    "l": 26.667
  },
  "oklch": {
    "l": 0.51012,
    "c": 0.10101,
    "h": 113.7
  },
  "luminance": 0.13634
}

Semantic roles & 50–950 ramp

primary

#666C1C

secondary

#4A43A1

accent

#46E251

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0D0D05

muted

#7E7E79

Preview Lab

Preview with #666C1C

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

Preview Lab → · Contrast checker → · Palette generator →