#A66637#A66637

#A66637 is a mid, moderate orange. Relative luminance 0.179; OKLCH L 57.1% C 0.103 H 55.2°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#A66637
RGB	rgb(166, 102, 55)
HSL	hsl(25, 50%, 43%)
HSV	hsv(25, 67%, 65%)
CMYK	cmyk(0%, 38.6%, 66.9%, 34.9%)
CIE-LAB	lab(49.36, 21.36, 36.79)
CIE-LCH	lch(49.36, 42.54, 59.86°)
OKLab	oklab(57.14% 0.059 0.0848)
OKLCH	oklch(57.14% 0.103 55.2)
XYZ	xyz(21.1684, 17.8876, 5.9515)
Luminance	0.1789 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A66637 #3777A6

analogous

#A63740 #A66637 #A69D37

triadic

#A66637 #37A666 #6637A6

tetradic

#A66637 #40A637 #3777A6 #9D37A6

square

#A66637 #40A637 #3777A6 #9D37A6

split-complementary

#A66637 #37A69D #3740A6

monochromatic

#4A2E19 #784A28 #A66637 #C68454 #D6A582

Accessibility & contrast

On white

4.59

#A66637 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#A66637 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #A66637

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A66637	#FFFFFF	#000000	##FFFFFF
##A66637	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#796D32

Deuteranopia (green-blind)

#887B37

Tritanopia (blue-blind)

#B5595B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #a66637;
/* rgb */ color: rgb(166, 102, 55);
/* oklch */ color: oklch(57.1% 0.103 55.2);

Tailwind

colors: {
  custom: {
    50: '#c5926f',
    500: '#a66637',
    950: '#000000',
  },
}

SCSS

$custom: #a66637;
$custom-light: #c5926f;
$custom-dark: #000000;

JSON

{
  "hex": "#a66637",
  "rgb": {
    "r": 166,
    "g": 102,
    "b": 55
  },
  "hsl": {
    "h": 25.405,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.57136,
    "c": 0.10333,
    "h": 55.2
  },
  "luminance": 0.17886
}

Semantic roles & 50–950 ramp

primary

#A66637

secondary

#7AA2BF

accent

#9FDA4E

background

#FCF9F6

surface

#F9F1EC

border

#D2CBC7

text

#130D07

muted

#827E7A

Preview Lab

Preview with #A66637

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

Preview Lab → · Contrast checker → · Palette generator →