#A73A1B#A73A1B

#A73A1B is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.0% C 0.150 H 36.1°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#A73A1B
RGB	rgb(167, 58, 27)
HSL	hsl(13, 72%, 38%)
HSV	hsv(13, 84%, 65%)
CMYK	cmyk(0%, 65.3%, 83.8%, 34.5%)
CIE-LAB	lab(40.12, 43.36, 41.53)
CIE-LCH	lch(40.12, 60.04, 43.76°)
OKLab	oklab(50.03% 0.1211 0.0882)
OKLCH	oklch(50.03% 0.15 36.1)
XYZ	xyz(17.6492, 11.3233, 2.2930)
Luminance	0.1132 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A73A1B #1B88A7

analogous

#A71B42 #A73A1B #A7801B

triadic

#A73A1B #1BA73A #3A1BA7

tetradic

#A73A1B #42A71B #1B88A7 #801BA7

square

#A73A1B #42A71B #1B88A7 #801BA7

split-complementary

#A73A1B #1BA780 #1B42A7

monochromatic

#3E150A #722812 #A73A1B #DC4C24 #E47758

Accessibility & contrast

On white

6.43

#A73A1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#A73A1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A73A1B

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A73A1B	#FFFFFF	#000000	##FFFFFF
##A73A1B	1.00	6.43	3.26	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A4F16

Deuteranopia (green-blind)

#746816

Tritanopia (blue-blind)

#B81B34

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a73a1b;
/* rgb */ color: rgb(167, 58, 27);
/* oklch */ color: oklch(50.0% 0.150 36.1);

Tailwind

colors: {
  custom: {
    50: '#ca755a',
    500: '#a73a1b',
    950: '#000000',
  },
}

SCSS

$custom: #a73a1b;
$custom-light: #ca755a;
$custom-dark: #000000;

JSON

{
  "hex": "#a73a1b",
  "rgb": {
    "r": 167,
    "g": 58,
    "b": 27
  },
  "hsl": {
    "h": 13.286,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.50025,
    "c": 0.14981,
    "h": 36.1
  },
  "luminance": 0.11321
}

Semantic roles & 50–950 ramp

primary

#A73A1B

secondary

#56AEC8

accent

#C7EF39

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A73A1B

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

Preview Lab → · Contrast checker → · Palette generator →