#66541B#66541B

#66541B is a mid, moderate yellow. Relative luminance 0.092; OKLCH L 45.2% C 0.078 H 91.2°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#66541B
RGB	rgb(102, 84, 27)
HSL	hsl(46, 58%, 25%)
HSV	hsv(46, 74%, 40%)
CMYK	cmyk(0%, 17.6%, 73.5%, 60%)
CIE-LAB	lab(36.45, 0.52, 34.71)
CIE-LCH	lch(36.45, 34.71, 89.14°)
OKLab	oklab(45.24% -0.0016 0.0779)
OKLCH	oklch(45.24% 0.078 91.2)
XYZ	xyz(8.8481, 9.2451, 2.3551)
Luminance	0.0925 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66541B #1B2D66

analogous

#662E1B #66541B #52661B

triadic

#66541B #1B6654 #541B66

tetradic

#66541B #1B662E #1B2D66 #661B52

square

#66541B #1B662E #1B2D66 #661B52

split-complementary

#66541B #1B5266 #2E1B66

monochromatic

#181406 #362C0E #66541B #967C28 #C7A435

Accessibility & contrast

On white

7.37

#66541B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#66541B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66541B

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66541B	#FFFFFF	#000000	##FFFFFF
##66541B	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5313

Deuteranopia (green-blind)

#62581E

Tritanopia (blue-blind)

#6F4D48

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #66541b;
/* rgb */ color: rgb(102, 84, 27);
/* oklch */ color: oklch(45.2% 0.078 91.2);

Tailwind

colors: {
  custom: {
    50: '#94835b',
    500: '#66541b',
    950: '#000000',
  },
}

SCSS

$custom: #66541b;
$custom-light: #94835b;
$custom-dark: #000000;

JSON

{
  "hex": "#66541b",
  "rgb": {
    "r": 102,
    "g": 84,
    "b": 27
  },
  "hsl": {
    "h": 45.6,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.45241,
    "c": 0.07788,
    "h": 91.2
  },
  "luminance": 0.09245
}

Semantic roles & 50–950 ramp

primary

#66541B

secondary

#41579B

accent

#6CE146

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0E0A04

muted

#7E7C79

Preview Lab

Preview with #66541B

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

Preview Lab → · Contrast checker → · Palette generator →