#666B29#666B29

#666B29 is a mid, moderate yellow. Relative luminance 0.135; OKLCH L 50.9% C 0.089 H 113.2°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#666B29
RGB	rgb(102, 107, 41)
HSL	hsl(65, 45%, 29%)
HSV	hsv(65, 62%, 42%)
CMYK	cmyk(4.7%, 0%, 61.7%, 58%)
CIE-LAB	lab(43.51, -11.82, 35.47)
CIE-LCH	lch(43.51, 37.39, 108.44°)
OKLab	oklab(50.89% -0.035 0.0818)
OKLCH	oklch(50.89% 0.089 113.2)
XYZ	xyz(11.1377, 13.5005, 4.1165)
Luminance	0.1350 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666B29 #2E296B

analogous

#6B4F29 #666B29 #456B29

triadic

#666B29 #29666B #6B2966

tetradic

#666B29 #296B4F #2E296B #6B2945

square

#666B29 #296B4F #2E296B #6B2945

split-complementary

#666B29 #29456B #4F296B

monochromatic

#151608 #3C3F18 #666B29 #90973A #B5BD52

Accessibility & contrast

On white

5.68

#666B29 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#666B29 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666B29

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666B29	#FFFFFF	#000000	##FFFFFF
##666B29	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#736622

Deuteranopia (green-blind)

#73682D

Tritanopia (blue-blind)

#6D655D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #666b29;
/* rgb */ color: rgb(102, 107, 41);
/* oklch */ color: oklch(50.9% 0.089 113.2);

Tailwind

colors: {
  custom: {
    50: '#939566',
    500: '#666b29',
    950: '#000000',
  },
}

SCSS

$custom: #666b29;
$custom-light: #939566;
$custom-dark: #000000;

JSON

{
  "hex": "#666b29",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 41
  },
  "hsl": {
    "h": 64.545,
    "s": 44.595,
    "l": 29.02
  },
  "oklch": {
    "l": 0.50891,
    "c": 0.08897,
    "h": 113.2
  },
  "luminance": 0.135
}

Semantic roles & 50–950 ramp

primary

#666B29

secondary

#58529D

accent

#53D45D

background

#F9F9F6

surface

#F2F1EB

border

#CCCBC6

text

#0D0D06

muted

#7E7E7A

Preview Lab

Preview with #666B29

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

Preview Lab → · Contrast checker → · Palette generator →