#66401B#66401B

#66401B is a dark, moderate orange. Relative luminance 0.066; OKLCH L 40.8% C 0.074 H 62.3°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#66401B
RGB	rgb(102, 64, 27)
HSL	hsl(30, 58%, 25%)
HSV	hsv(30, 74%, 40%)
CMYK	cmyk(0%, 37.3%, 73.5%, 60%)
CIE-LAB	lab(30.81, 12.80, 28.75)
CIE-LCH	lch(30.81, 31.47, 66.00°)
OKLab	oklab(40.83% 0.0343 0.0652)
OKLCH	oklch(40.83% 0.074 62.3)
XYZ	xyz(7.5113, 6.5714, 1.9095)
Luminance	0.0657 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66401B #1B4166

analogous

#661B1B #66401B #66651B

triadic

#66401B #1B6640 #401B66

tetradic

#66401B #1B661B #1B4166 #651B66

square

#66401B #1B661B #1B4166 #651B66

split-complementary

#66401B #1B6665 #1B1B66

monochromatic

#180F06 #36220E #66401B #965E28 #C77D35

Accessibility & contrast

On white

9.07

#66401B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#66401B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66401B

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66401B	#FFFFFF	#000000	##FFFFFF
##66401B	1.00	9.07	2.31	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4317

Deuteranopia (green-blind)

#554C1B

Tritanopia (blue-blind)

#703838

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #66401b;
/* rgb */ color: rgb(102, 64, 27);
/* oklch */ color: oklch(40.8% 0.074 62.3);

Tailwind

colors: {
  custom: {
    50: '#957559',
    500: '#66401b',
    950: '#000000',
  },
}

SCSS

$custom: #66401b;
$custom-light: #957559;
$custom-dark: #000000;

JSON

{
  "hex": "#66401b",
  "rgb": {
    "r": 102,
    "g": 64,
    "b": 27
  },
  "hsl": {
    "h": 29.6,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.40826,
    "c": 0.07364,
    "h": 62.3
  },
  "luminance": 0.06571
}

Semantic roles & 50–950 ramp

primary

#66401B

secondary

#416F9B

accent

#95E146

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #66401B

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

Preview Lab → · Contrast checker → · Palette generator →