#A0371A#A0371A

#A0371A is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.4% C 0.145 H 35.8°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#A0371A
RGB	rgb(160, 55, 26)
HSL	hsl(13, 72%, 36%)
HSV	hsv(13, 84%, 63%)
CMYK	cmyk(0%, 65.6%, 83.8%, 37.3%)
CIE-LAB	lab(38.35, 42.13, 39.92)
CIE-LCH	lch(38.35, 58.04, 43.46°)
OKLab	oklab(48.45% 0.1178 0.085)
OKLCH	oklch(48.45% 0.145 35.8)
XYZ	xyz(16.0517, 10.2829, 2.1167)
Luminance	0.1028 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A0371A #1A83A0

analogous

#A01A40 #A0371A #A07A1A

triadic

#A0371A #1AA037 #371AA0

tetradic

#A0371A #40A01A #1A83A0 #7A1AA0

square

#A0371A #40A01A #1A83A0 #7A1AA0

split-complementary

#A0371A #1AA07A #1A40A0

monochromatic

#371309 #6B2511 #A0371A #D54923 #E37152

Accessibility & contrast

On white

6.87

#A0371A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#A0371A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A0371A

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A0371A	#FFFFFF	#000000	##FFFFFF
##A0371A	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554C15

Deuteranopia (green-blind)

#6F6315

Tritanopia (blue-blind)

#B01931

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a0371a;
/* rgb */ color: rgb(160, 55, 26);
/* oklch */ color: oklch(48.4% 0.145 35.8);

Tailwind

colors: {
  custom: {
    50: '#c47359',
    500: '#a0371a',
    950: '#000000',
  },
}

SCSS

$custom: #a0371a;
$custom-light: #c47359;
$custom-dark: #000000;

JSON

{
  "hex": "#a0371a",
  "rgb": {
    "r": 160,
    "g": 55,
    "b": 26
  },
  "hsl": {
    "h": 12.985,
    "s": 72.043,
    "l": 36.471
  },
  "oklch": {
    "l": 0.48449,
    "c": 0.14524,
    "h": 35.8
  },
  "luminance": 0.10281
}

Semantic roles & 50–950 ramp

primary

#A0371A

secondary

#50ACC5

accent

#C7EF39

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140804

muted

#837B79

Preview Lab

Preview with #A0371A

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

Preview Lab → · Contrast checker → · Palette generator →