#66731B#66731B

#66731B is a mid, moderate yellow. Relative luminance 0.152; OKLCH L 52.7% C 0.110 H 117.8°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#66731B
RGB	rgb(102, 115, 27)
HSL	hsl(69, 62%, 28%)
HSV	hsv(69, 77%, 45%)
CMYK	cmyk(11.3%, 0%, 76.5%, 54.9%)
CIE-LAB	lab(45.86, -17.15, 44.04)
CIE-LCH	lch(45.86, 47.26, 111.28°)
OKLab	oklab(52.74% -0.0514 0.0976)
OKLCH	oklch(52.74% 0.11 117.8)
XYZ	xyz(11.8083, 15.1655, 3.3419)
Luminance	0.1517 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66731B #281B73

analogous

#73541B #66731B #3A731B

triadic

#66731B #1B6673 #731B66

tetradic

#66731B #1B7354 #281B73 #731B3A

square

#66731B #1B7354 #281B73 #731B3A

split-complementary

#66731B #1B3A73 #541B73

monochromatic

#161906 #3A410F #66731B #92A527 #BAD038

Accessibility & contrast

On white

5.21

#66731B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#66731B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #66731B

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66731B	#FFFFFF	#000000	##FFFFFF
##66731B	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B6C09

Deuteranopia (green-blind)

#7A6D23

Tritanopia (blue-blind)

#6D6C62

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #66731b;
/* rgb */ color: rgb(102, 115, 27);
/* oklch */ color: oklch(52.7% 0.110 117.8);

Tailwind

colors: {
  custom: {
    50: '#949b5f',
    500: '#66731b',
    950: '#000000',
  },
}

SCSS

$custom: #66731b;
$custom-light: #949b5f;
$custom-dark: #000000;

JSON

{
  "hex": "#66731b",
  "rgb": {
    "r": 102,
    "g": 115,
    "b": 27
  },
  "hsl": {
    "h": 68.864,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.52741,
    "c": 0.11024,
    "h": 117.8
  },
  "luminance": 0.15165
}

Semantic roles & 50–950 ramp

primary

#66731B

secondary

#5142A8

accent

#43E55B

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0E05

muted

#7E7E79

Preview Lab

Preview with #66731B

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

Preview Lab → · Contrast checker → · Palette generator →