#A66F37#A66F37

#A66F37 is a mid, moderate orange. Relative luminance 0.198; OKLCH L 58.8% C 0.100 H 64.1°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#A66F37
RGB	rgb(166, 111, 55)
HSL	hsl(30, 50%, 43%)
HSV	hsv(30, 67%, 65%)
CMYK	cmyk(0%, 33.1%, 66.9%, 34.9%)
CIE-LAB	lab(51.56, 16.27, 39.28)
CIE-LCH	lch(51.56, 42.51, 67.50°)
OKLab	oklab(58.84% 0.0438 0.0902)
OKLCH	oklch(58.84% 0.1 64.1)
XYZ	xyz(22.1014, 19.7536, 6.2625)
Luminance	0.1975 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A66F37 #376EA6

analogous

#A63737 #A66F37 #A5A637

triadic

#A66F37 #37A66F #6F37A6

tetradic

#A66F37 #37A637 #376EA6 #A637A5

square

#A66F37 #37A637 #376EA6 #A637A5

split-complementary

#A66F37 #37A5A6 #3737A6

monochromatic

#4A3219 #785028 #A66F37 #C68E54 #D6AC82

Accessibility & contrast

On white

4.24

#A66F37 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#A66F37 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #A66F37

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A66F37	#FFFFFF	#000000	##000000
##A66F37	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#807331

Deuteranopia (green-blind)

#8D8038

Tritanopia (blue-blind)

#B56362

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #a66f37;
/* rgb */ color: rgb(166, 111, 55);
/* oklch */ color: oklch(58.8% 0.100 64.1);

Tailwind

colors: {
  custom: {
    50: '#c49870',
    500: '#a66f37',
    950: '#000000',
  },
}

SCSS

$custom: #a66f37;
$custom-light: #c49870;
$custom-dark: #000000;

JSON

{
  "hex": "#a66f37",
  "rgb": {
    "r": 166,
    "g": 111,
    "b": 55
  },
  "hsl": {
    "h": 30.27,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.5884,
    "c": 0.10025,
    "h": 64.1
  },
  "luminance": 0.19752
}

Semantic roles & 50–950 ramp

primary

#A66F37

secondary

#7A9CBF

accent

#93DA4E

background

#FCF9F6

surface

#F8F2EC

border

#D1CCC7

text

#130D07

muted

#827E7A

Preview Lab

Preview with #A66F37

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

Preview Lab → · Contrast checker → · Palette generator →