#A73728#A73728

#A73728 is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.8% C 0.150 H 30.6°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#A73728
RGB	rgb(167, 55, 40)
HSL	hsl(7, 61%, 41%)
HSV	hsv(7, 76%, 65%)
CMYK	cmyk(0%, 67.1%, 76%, 34.5%)
CIE-LAB	lab(39.75, 45.14, 34.29)
CIE-LCH	lch(39.75, 56.69, 37.22°)
OKLab	oklab(49.79% 0.1291 0.0764)
OKLCH	oklch(49.79% 0.15 30.6)
XYZ	xyz(17.6875, 11.1036, 3.2189)
Luminance	0.1110 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A73728 #2898A7

analogous

#A72858 #A73728 #A77728

triadic

#A73728 #28A737 #3728A7

tetradic

#A73728 #58A728 #2898A7 #7728A7

square

#A73728 #58A728 #2898A7 #7728A7

split-complementary

#A73728 #28A777 #2858A7

monochromatic

#441610 #76271C #A73728 #D04D3C #DC7A6D

Accessibility & contrast

On white

6.52

#A73728 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#A73728 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A73728

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A73728	#FFFFFF	#000000	##FFFFFF
##A73728	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574E26

Deuteranopia (green-blind)

#736724

Tritanopia (blue-blind)

#B81734

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a73728;
/* rgb */ color: rgb(167, 55, 40);
/* oklch */ color: oklch(49.8% 0.150 30.6);

Tailwind

colors: {
  custom: {
    50: '#c97463',
    500: '#a73728',
    950: '#000000',
  },
}

SCSS

$custom: #a73728;
$custom-light: #c97463;
$custom-dark: #000000;

JSON

{
  "hex": "#a73728",
  "rgb": {
    "r": 167,
    "g": 55,
    "b": 40
  },
  "hsl": {
    "h": 7.087,
    "s": 61.353,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49789,
    "c": 0.14999,
    "h": 30.6
  },
  "luminance": 0.11101
}

Semantic roles & 50–950 ramp

primary

#A73728

secondary

#68B8C3

accent

#D1E443

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#150905

muted

#837B79

Preview Lab

Preview with #A73728

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

Preview Lab → · Contrast checker → · Palette generator →