#66581B#66581B

#66581B is a mid, moderate yellow. Relative luminance 0.099; OKLCH L 46.2% C 0.081 H 96.0°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#66581B
RGB	rgb(102, 88, 27)
HSL	hsl(49, 58%, 25%)
HSV	hsv(49, 74%, 40%)
CMYK	cmyk(0%, 13.7%, 73.5%, 60%)
CIE-LAB	lab(37.63, -1.88, 35.92)
CIE-LCH	lch(37.63, 35.97, 92.99°)
OKLab	oklab(46.17% -0.0085 0.0804)
OKLCH	oklch(46.17% 0.081 96)
XYZ	xyz(9.1675, 9.8838, 2.4616)
Luminance	0.0988 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66581B #1B2966

analogous

#66321B #66581B #4E661B

triadic

#66581B #1B6658 #581B66

tetradic

#66581B #1B6632 #1B2966 #661B4E

square

#66581B #1B6632 #1B2966 #661B4E

split-complementary

#66581B #1B4E66 #321B66

monochromatic

#181506 #362E0E #66581B #968228 #C7AB35

Accessibility & contrast

On white

7.06

#66581B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#66581B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66581B

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66581B	#FFFFFF	#000000	##FFFFFF
##66581B	1.00	7.06	2.98	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615613

Deuteranopia (green-blind)

#655A1E

Tritanopia (blue-blind)

#6E514C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #66581b;
/* rgb */ color: rgb(102, 88, 27);
/* oklch */ color: oklch(46.2% 0.081 96.0);

Tailwind

colors: {
  custom: {
    50: '#94865b',
    500: '#66581b',
    950: '#000000',
  },
}

SCSS

$custom: #66581b;
$custom-light: #94865b;
$custom-dark: #000000;

JSON

{
  "hex": "#66581b",
  "rgb": {
    "r": 102,
    "g": 88,
    "b": 27
  },
  "hsl": {
    "h": 48.8,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.46174,
    "c": 0.08086,
    "h": 96
  },
  "luminance": 0.09883
}

Semantic roles & 50–950 ramp

primary

#66581B

secondary

#41529B

accent

#63E146

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0E0B04

muted

#7E7C79

Preview Lab

Preview with #66581B

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

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