#666F31#666F31

#666F31 is a mid, moderate yellow. Relative luminance 0.144; OKLCH L 52.0% C 0.086 H 116.3°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#666F31
RGB	rgb(102, 111, 49)
HSL	hsl(69, 39%, 31%)
HSV	hsv(69, 56%, 44%)
CMYK	cmyk(8.1%, 0%, 55.9%, 56.5%)
CIE-LAB	lab(44.82, -13.31, 32.91)
CIE-LCH	lch(44.82, 35.50, 112.02°)
OKLab	oklab(51.97% -0.0383 0.0773)
OKLCH	oklch(51.97% 0.086 116.3)
XYZ	xyz(11.7185, 14.4155, 5.0703)
Luminance	0.1442 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666F31 #3A316F

analogous

#6F5931 #666F31 #476F31

triadic

#666F31 #31666F #6F3166

tetradic

#666F31 #316F59 #3A316F #6F3147

square

#666F31 #316F59 #3A316F #6F3147

split-complementary

#666F31 #31476F #59316F

monochromatic

#181A0C #3F451E #666F31 #8D9944 #ACB961

Accessibility & contrast

On white

5.41

#666F31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#666F31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666F31

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666F31	#FFFFFF	#000000	##FFFFFF
##666F31	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#766A2B

Deuteranopia (green-blind)

#756A35

Tritanopia (blue-blind)

#6C6961

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #666f31;
/* rgb */ color: rgb(102, 111, 49);
/* oklch */ color: oklch(52.0% 0.086 116.3);

Tailwind

colors: {
  custom: {
    50: '#93986b',
    500: '#666f31',
    950: '#000000',
  },
}

SCSS

$custom: #666f31;
$custom-light: #93986b;
$custom-dark: #000000;

JSON

{
  "hex": "#666f31",
  "rgb": {
    "r": 102,
    "g": 111,
    "b": 49
  },
  "hsl": {
    "h": 68.71,
    "s": 38.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.51972,
    "c": 0.08625,
    "h": 116.3
  },
  "luminance": 0.14415
}

Semantic roles & 50–950 ramp

primary

#666F31

secondary

#665CA0

accent

#59CF6A

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0D07

muted

#7E7E7A

Preview Lab

Preview with #666F31

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

Preview Lab → · Contrast checker → · Palette generator →