#A73F21#A73F21

#A73F21 is a mid, vivid red. Relative luminance 0.119; OKLCH L 50.7% C 0.144 H 36.5°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#A73F21
RGB	rgb(167, 63, 33)
HSL	hsl(13, 67%, 39%)
HSV	hsv(13, 80%, 65%)
CMYK	cmyk(0%, 62.3%, 80.2%, 34.5%)
CIE-LAB	lab(41.03, 41.26, 39.40)
CIE-LCH	lch(41.03, 57.05, 43.68°)
OKLab	oklab(50.73% 0.1157 0.0855)
OKLCH	oklch(50.73% 0.144 36.5)
XYZ	xyz(17.9903, 11.8829, 2.7849)
Luminance	0.1188 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A73F21 #2189A7

analogous

#A72146 #A73F21 #A78221

triadic

#A73F21 #21A73F #3F21A7

tetradic

#A73F21 #46A721 #2189A7 #8221A7

square

#A73F21 #46A721 #2189A7 #8221A7

split-complementary

#A73F21 #21A782 #2146A7

monochromatic

#41180D #742C17 #A73F21 #D6552F #E07E62

Accessibility & contrast

On white

6.22

#A73F21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#A73F21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A73F21

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A73F21	#FFFFFF	#000000	##FFFFFF
##A73F21	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C521D

Deuteranopia (green-blind)

#76691D

Tritanopia (blue-blind)

#B82539

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #a73f21;
/* rgb */ color: rgb(167, 63, 33);
/* oklch */ color: oklch(50.7% 0.144 36.5);

Tailwind

colors: {
  custom: {
    50: '#c9785e',
    500: '#a73f21',
    950: '#000000',
  },
}

SCSS

$custom: #a73f21;
$custom-light: #c9785e;
$custom-dark: #000000;

JSON

{
  "hex": "#a73f21",
  "rgb": {
    "r": 167,
    "g": 63,
    "b": 33
  },
  "hsl": {
    "h": 13.433,
    "s": 67,
    "l": 39.216
  },
  "oklch": {
    "l": 0.50727,
    "c": 0.14388,
    "h": 36.5
  },
  "luminance": 0.1188
}

Semantic roles & 50–950 ramp

primary

#A73F21

secondary

#5FAEC5

accent

#C3EA3E

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #A73F21

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

Preview Lab → · Contrast checker → · Palette generator →