#A73037#A73037

#A73037 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.2% C 0.155 H 21.8°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#A73037
RGB	rgb(167, 48, 55)
HSL	hsl(356, 55%, 42%)
HSV	hsv(356, 71%, 65%)
CMYK	cmyk(0%, 71.3%, 67.1%, 34.5%)
CIE-LAB	lab(38.91, 48.76, 24.37)
CIE-LCH	lch(38.91, 54.51, 26.56°)
OKLab	oklab(49.23% 0.1436 0.0575)
OKLCH	oklch(49.23% 0.155 21.8)
XYZ	xyz(17.6848, 10.6078, 4.7300)
Luminance	0.1061 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A73037 #30A7A0

analogous

#A73072 #A73037 #A76530

triadic

#A73037 #37A730 #3037A7

tetradic

#A73037 #72A730 #30A7A0 #6530A7

square

#A73037 #72A730 #30A7A0 #6530A7

split-complementary

#A73037 #30A765 #3072A7

monochromatic

#481518 #772227 #A73037 #CB4951 #D8797F

Accessibility & contrast

On white

6.73

#A73037 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#A73037 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A73037

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A73037	#FFFFFF	#000000	##FFFFFF
##A73037	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514B36

Deuteranopia (green-blind)

#6F6533

Tritanopia (blue-blind)

#B70934

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a73037;
/* rgb */ color: rgb(167, 48, 55);
/* oklch */ color: oklch(49.2% 0.155 21.8);

Tailwind

colors: {
  custom: {
    50: '#c8716d',
    500: '#a73037',
    950: '#000000',
  },
}

SCSS

$custom: #a73037;
$custom-light: #c8716d;
$custom-dark: #000000;

JSON

{
  "hex": "#a73037",
  "rgb": {
    "r": 167,
    "g": 48,
    "b": 55
  },
  "hsl": {
    "h": 356.471,
    "s": 55.349,
    "l": 42.157
  },
  "oklch": {
    "l": 0.49226,
    "c": 0.1547,
    "h": 21.8
  },
  "luminance": 0.10605
}

Semantic roles & 50–950 ramp

primary

#A73037

secondary

#72C1BC

accent

#DFD649

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A73037

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

Preview Lab → · Contrast checker → · Palette generator →