#A73131#A73131

#A73131 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.2% C 0.154 H 24.8°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#A73131
RGB	rgb(167, 49, 49)
HSL	hsl(0, 55%, 42%)
HSV	hsv(0, 71%, 65%)
CMYK	cmyk(0%, 70.7%, 70.7%, 34.5%)
CIE-LAB	lab(38.96, 48.04, 28.10)
CIE-LCH	lch(38.96, 55.65, 30.32°)
OKLab	oklab(49.23% 0.1401 0.0648)
OKLCH	oklch(49.23% 0.154 24.8)
XYZ	xyz(17.5910, 10.6365, 4.0319)
Luminance	0.1063 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A73131 #31A7A7

analogous

#A7316C #A73131 #A76C31

triadic

#A73131 #31A731 #3131A7

tetradic

#A73131 #6CA731 #31A7A7 #6C31A7

square

#A73131 #6CA731 #31A7A7 #6C31A7

split-complementary

#A73131 #31A76C #316CA7

monochromatic

#481515 #782323 #A73131 #CA4B4B #D87A7A

Accessibility & contrast

On white

6.72

#A73131 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#A73131 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A73131

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A73131	#FFFFFF	#000000	##FFFFFF
##A73131	1.00	6.72	3.13	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524C30

Deuteranopia (green-blind)

#70652D

Tritanopia (blue-blind)

#B80932

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a73131;
/* rgb */ color: rgb(167, 49, 49);
/* oklch */ color: oklch(49.2% 0.154 24.8);

Tailwind

colors: {
  custom: {
    50: '#c97169',
    500: '#a73131',
    950: '#000000',
  },
}

SCSS

$custom: #a73131;
$custom-light: #c97169;
$custom-dark: #000000;

JSON

{
  "hex": "#a73131",
  "rgb": {
    "r": 167,
    "g": 49,
    "b": 49
  },
  "hsl": {
    "h": 0,
    "s": 54.63,
    "l": 42.353
  },
  "oklch": {
    "l": 0.49232,
    "c": 0.15436,
    "h": 24.8
  },
  "luminance": 0.10634
}

Semantic roles & 50–950 ramp

primary

#A73131

secondary

#73C1C1

accent

#DEDE4A

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #A73131

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

Preview Lab → · Contrast checker → · Palette generator →