#666A2B#666A2B

#666A2B is a mid, moderate yellow. Relative luminance 0.133; OKLCH L 50.7% C 0.086 H 112.4°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#666A2B
RGB	rgb(102, 106, 43)
HSL	hsl(64, 42%, 29%)
HSV	hsv(64, 59%, 42%)
CMYK	cmyk(3.8%, 0%, 59.4%, 58.4%)
CIE-LAB	lab(43.22, -11.09, 34.16)
CIE-LCH	lch(43.22, 35.91, 108.00°)
OKLab	oklab(50.67% -0.0327 0.0793)
OKLCH	oklch(50.67% 0.086 112.4)
XYZ	xyz(11.0698, 13.3075, 4.2705)
Luminance	0.1331 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666A2B #2F2B6A

analogous

#6A4F2B #666A2B #476A2B

triadic

#666A2B #2B666A #6A2B66

tetradic

#666A2B #2B6A4F #2F2B6A #6A2B47

square

#666A2B #2B6A4F #2F2B6A #6A2B47

split-complementary

#666A2B #2B476A #4F2B6A

monochromatic

#151609 #3C3E19 #666A2B #90963D #B4BA55

Accessibility & contrast

On white

5.74

#666A2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#666A2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A2B

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666A2B	#FFFFFF	#000000	##FFFFFF
##666A2B	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#726524

Deuteranopia (green-blind)

#72672F

Tritanopia (blue-blind)

#6D645C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #666a2b;
/* rgb */ color: rgb(102, 106, 43);
/* oklch */ color: oklch(50.7% 0.086 112.4);

Tailwind

colors: {
  custom: {
    50: '#939467',
    500: '#666a2b',
    950: '#000000',
  },
}

SCSS

$custom: #666a2b;
$custom-light: #939467;
$custom-dark: #000000;

JSON

{
  "hex": "#666a2b",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 43
  },
  "hsl": {
    "h": 63.81,
    "s": 42.282,
    "l": 29.216
  },
  "oklch": {
    "l": 0.5067,
    "c": 0.08573,
    "h": 112.4
  },
  "luminance": 0.13307
}

Semantic roles & 50–950 ramp

primary

#666A2B

secondary

#59559C

accent

#56D25E

background

#F9F9F6

surface

#F2F1EB

border

#CCCBC6

text

#0D0D06

muted

#7E7E7A

Preview Lab

Preview with #666A2B

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

Preview Lab → · Contrast checker → · Palette generator →