#A66B1B#A66B1B

#A66B1B is a mid, moderate orange. Relative luminance 0.187; OKLCH L 57.8% C 0.116 H 68.5°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#A66B1B
RGB	rgb(166, 107, 27)
HSL	hsl(35, 72%, 38%)
HSV	hsv(35, 84%, 65%)
CMYK	cmyk(0%, 35.5%, 83.7%, 34.9%)
CIE-LAB	lab(50.34, 17.20, 50.60)
CIE-LCH	lch(50.34, 53.44, 71.22°)
OKLab	oklab(57.82% 0.0427 0.1084)
OKLCH	oklch(57.82% 0.116 68.5)
XYZ	xyz(21.1831, 18.7036, 3.5312)
Luminance	0.1870 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A66B1B #1B56A6

analogous

#A6251B #A66B1B #9CA61B

triadic

#A66B1B #1BA66B #6B1BA6

tetradic

#A66B1B #1BA625 #1B56A6 #A61B9C

square

#A66B1B #1BA625 #1B56A6 #A61B9C

split-complementary

#A66B1B #1B9CA6 #251BA6

monochromatic

#3D270A #714912 #A66B1B #DB8D24 #E4A858

Accessibility & contrast

On white

4.43

#A66B1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#A66B1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #A66B1B

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A66B1B	#FFFFFF	#000000	##000000
##A66B1B	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F6F0A

Deuteranopia (green-blind)

#8C7D1D

Tritanopia (blue-blind)

#B65D5C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #a66b1b;
/* rgb */ color: rgb(166, 107, 27);
/* oklch */ color: oklch(57.8% 0.116 68.5);

Tailwind

colors: {
  custom: {
    50: '#c6955f',
    500: '#a66b1b',
    950: '#000000',
  },
}

SCSS

$custom: #a66b1b;
$custom-light: #c6955f;
$custom-dark: #000000;

JSON

{
  "hex": "#a66b1b",
  "rgb": {
    "r": 166,
    "g": 107,
    "b": 27
  },
  "hsl": {
    "h": 34.532,
    "s": 72.021,
    "l": 37.843
  },
  "oklch": {
    "l": 0.5782,
    "c": 0.11646,
    "h": 68.5
  },
  "luminance": 0.18702
}

Semantic roles & 50–950 ramp

primary

#A66B1B

secondary

#5686C7

accent

#86EF39

background

#FCF9F5

surface

#F9F1EA

border

#D2CBC6

text

#140D05

muted

#827E79

Preview Lab

Preview with #A66B1B

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

Preview Lab → · Contrast checker → · Palette generator →