#66371C#66371C

#66371C is a dark, moderate orange. Relative luminance 0.056; OKLCH L 39.0% C 0.078 H 48.9°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#66371C
RGB	rgb(102, 55, 28)
HSL	hsl(22, 57%, 25%)
HSV	hsv(22, 73%, 40%)
CMYK	cmyk(0%, 46.1%, 72.5%, 60%)
CIE-LAB	lab(28.49, 18.37, 25.61)
CIE-LCH	lch(28.49, 31.52, 54.35°)
OKLab	oklab(39.04% 0.0512 0.0586)
OKLCH	oklch(39.04% 0.078 48.9)
XYZ	xyz(7.0559, 5.6418, 1.8158)
Luminance	0.0564 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66371C #1C4B66

analogous

#661C26 #66371C #665C1C

triadic

#66371C #1C6637 #371C66

tetradic

#66371C #26661C #1C4B66 #5C1C66

square

#66371C #26661C #1C4B66 #5C1C66

split-complementary

#66371C #1C665C #1C2666

monochromatic

#180D07 #361D0F #66371C #965129 #C66B36

Accessibility & contrast

On white

9.87

#66371C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#66371C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66371C

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66371C	#FFFFFF	#000000	##FFFFFF
##66371C	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#443D19

Deuteranopia (green-blind)

#4F471C

Tritanopia (blue-blind)

#702E31

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #66371c;
/* rgb */ color: rgb(102, 55, 28);
/* oklch */ color: oklch(39.0% 0.078 48.9);

Tailwind

colors: {
  custom: {
    50: '#966e59',
    500: '#66371c',
    950: '#000000',
  },
}

SCSS

$custom: #66371c;
$custom-light: #966e59;
$custom-dark: #000000;

JSON

{
  "hex": "#66371c",
  "rgb": {
    "r": 102,
    "g": 55,
    "b": 28
  },
  "hsl": {
    "h": 21.892,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.39038,
    "c": 0.07783,
    "h": 48.9
  },
  "luminance": 0.05641
}

Semantic roles & 50–950 ramp

primary

#66371C

secondary

#437B9B

accent

#A9E048

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #66371C

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

Preview Lab → · Contrast checker → · Palette generator →