#A73718#A73718

#A73718 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.6% C 0.153 H 35.6°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#A73718
RGB	rgb(167, 55, 24)
HSL	hsl(13, 75%, 37%)
HSV	hsv(13, 86%, 65%)
CMYK	cmyk(0%, 67.1%, 85.6%, 34.5%)
CIE-LAB	lab(39.61, 44.59, 42.49)
CIE-LCH	lch(39.61, 61.60, 43.62°)
OKLab	oklab(49.63% 0.1244 0.0892)
OKLCH	oklch(49.63% 0.153 35.6)
XYZ	xyz(17.4694, 11.0164, 2.0705)
Luminance	0.1101 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A73718 #1888A7

analogous

#A71841 #A73718 #A77F18

triadic

#A73718 #18A737 #3718A7

tetradic

#A73718 #41A718 #1888A7 #7F18A7

square

#A73718 #41A718 #1888A7 #7F18A7

split-complementary

#A73718 #18A77F #1841A7

monochromatic

#3C1409 #712510 #A73718 #DD4920 #E67353

Accessibility & contrast

On white

6.56

#A73718 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#A73718 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A73718

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A73718	#FFFFFF	#000000	##FFFFFF
##A73718	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584D12

Deuteranopia (green-blind)

#736712

Tritanopia (blue-blind)

#B81331

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a73718;
/* rgb */ color: rgb(167, 55, 24);
/* oklch */ color: oklch(49.6% 0.153 35.6);

Tailwind

colors: {
  custom: {
    50: '#ca7458',
    500: '#a73718',
    950: '#000000',
  },
}

SCSS

$custom: #a73718;
$custom-light: #ca7458;
$custom-dark: #000000;

JSON

{
  "hex": "#a73718",
  "rgb": {
    "r": 167,
    "g": 55,
    "b": 24
  },
  "hsl": {
    "h": 13.007,
    "s": 74.869,
    "l": 37.451
  },
  "oklch": {
    "l": 0.49633,
    "c": 0.15309,
    "h": 35.6
  },
  "luminance": 0.11014
}

Semantic roles & 50–950 ramp

primary

#A73718

secondary

#52AFC9

accent

#C9F136

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150803

muted

#837B78

Preview Lab

Preview with #A73718

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

Preview Lab → · Contrast checker → · Palette generator →