#A73531#A73531

#A73531 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.7% C 0.150 H 26.2°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#A73531
RGB	rgb(167, 53, 49)
HSL	hsl(2, 55%, 42%)
HSV	hsv(2, 71%, 65%)
CMYK	cmyk(0%, 68.3%, 70.7%, 34.5%)
CIE-LAB	lab(39.56, 46.41, 28.81)
CIE-LCH	lch(39.56, 54.62, 31.83°)
OKLab	oklab(49.68% 0.1349 0.0664)
OKLCH	oklch(49.68% 0.15 26.2)
XYZ	xyz(17.7657, 10.9860, 4.0902)
Luminance	0.1098 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A73531 #31A3A7

analogous

#A73168 #A73531 #A77031

triadic

#A73531 #31A735 #3531A7

tetradic

#A73531 #68A731 #31A3A7 #7031A7

square

#A73531 #68A731 #31A3A7 #7031A7

split-complementary

#A73531 #31A770 #3168A7

monochromatic

#481715 #782623 #A73531 #CA4F4B #D87E7A

Accessibility & contrast

On white

6.57

#A73531 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#A73531 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A73531

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A73531	#FFFFFF	#000000	##FFFFFF
##A73531	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554E30

Deuteranopia (green-blind)

#71662D

Tritanopia (blue-blind)

#B81535

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a73531;
/* rgb */ color: rgb(167, 53, 49);
/* oklch */ color: oklch(49.7% 0.150 26.2);

Tailwind

colors: {
  custom: {
    50: '#c87369',
    500: '#a73531',
    950: '#000000',
  },
}

SCSS

$custom: #a73531;
$custom-light: #c87369;
$custom-dark: #000000;

JSON

{
  "hex": "#a73531",
  "rgb": {
    "r": 167,
    "g": 53,
    "b": 49
  },
  "hsl": {
    "h": 2.034,
    "s": 54.63,
    "l": 42.353
  },
  "oklch": {
    "l": 0.49678,
    "c": 0.15039,
    "h": 26.2
  },
  "luminance": 0.10983
}

Semantic roles & 50–950 ramp

primary

#A73531

secondary

#73BEC1

accent

#D9DE4A

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A73531

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

Preview Lab → · Contrast checker → · Palette generator →