#66391D#66391D

#66391D is a dark, moderate orange. Relative luminance 0.058; OKLCH L 39.4% C 0.076 H 50.9°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#66391D
RGB	rgb(102, 57, 29)
HSL	hsl(23, 56%, 26%)
HSV	hsv(23, 72%, 40%)
CMYK	cmyk(0%, 44.1%, 71.6%, 60%)
CIE-LAB	lab(29.01, 17.22, 25.61)
CIE-LCH	lch(29.01, 30.86, 56.08°)
OKLab	oklab(39.44% 0.0479 0.0588)
OKLCH	oklch(39.44% 0.076 50.9)
XYZ	xyz(7.1650, 5.8405, 1.9122)
Luminance	0.0584 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66391D #1D4A66

analogous

#661D25 #66391D #665D1D

triadic

#66391D #1D6639 #391D66

tetradic

#66391D #25661D #1D4A66 #5D1D66

square

#66391D #25661D #1D4A66 #5D1D66

split-complementary

#66391D #1D665D #1D2566

monochromatic

#180D07 #361E0F #66391D #96542B #C56E38

Accessibility & contrast

On white

9.69

#66391D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#66391D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66391D

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66391D	#FFFFFF	#000000	##FFFFFF
##66391D	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463E1A

Deuteranopia (green-blind)

#50481D

Tritanopia (blue-blind)

#703033

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #66391d;
/* rgb */ color: rgb(102, 57, 29);
/* oklch */ color: oklch(39.4% 0.076 50.9);

Tailwind

colors: {
  custom: {
    50: '#96705a',
    500: '#66391d',
    950: '#000000',
  },
}

SCSS

$custom: #66391d;
$custom-light: #96705a;
$custom-dark: #000000;

JSON

{
  "hex": "#66391d",
  "rgb": {
    "r": 102,
    "g": 57,
    "b": 29
  },
  "hsl": {
    "h": 23.014,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.39439,
    "c": 0.07586,
    "h": 50.9
  },
  "luminance": 0.0584
}

Semantic roles & 50–950 ramp

primary

#66391D

secondary

#447A9B

accent

#A5DF49

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0704

muted

#7E7A79

Preview Lab

Preview with #66391D

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

Preview Lab → · Contrast checker → · Palette generator →