#A1371A#A1371A

#A1371A is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.6% C 0.146 H 35.7°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#A1371A
RGB	rgb(161, 55, 26)
HSL	hsl(13, 72%, 37%)
HSV	hsv(13, 84%, 63%)
CMYK	cmyk(0%, 65.8%, 83.9%, 36.9%)
CIE-LAB	lab(38.53, 42.49, 40.16)
CIE-LCH	lch(38.53, 58.46, 43.38°)
OKLab	oklab(48.62% 0.1188 0.0854)
OKLCH	oklch(48.62% 0.146 35.7)
XYZ	xyz(16.2524, 10.3864, 2.1261)
Luminance	0.1038 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1371A #1A84A1

analogous

#A11A41 #A1371A #A17B1A

triadic

#A1371A #1AA137 #371AA1

tetradic

#A1371A #41A11A #1A84A1 #7B1AA1

square

#A1371A #41A11A #1A84A1 #7B1AA1

split-complementary

#A1371A #1AA17B #1A41A1

monochromatic

#381309 #6C2511 #A1371A #D64923 #E37152

Accessibility & contrast

On white

6.83

#A1371A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#A1371A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A1371A

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1371A	#FFFFFF	#000000	##FFFFFF
##A1371A	1.00	6.83	3.08	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564C15

Deuteranopia (green-blind)

#706315

Tritanopia (blue-blind)

#B21831

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a1371a;
/* rgb */ color: rgb(161, 55, 26);
/* oklch */ color: oklch(48.6% 0.146 35.7);

Tailwind

colors: {
  custom: {
    50: '#c57359',
    500: '#a1371a',
    950: '#000000',
  },
}

SCSS

$custom: #a1371a;
$custom-light: #c57359;
$custom-dark: #000000;

JSON

{
  "hex": "#a1371a",
  "rgb": {
    "r": 161,
    "g": 55,
    "b": 26
  },
  "hsl": {
    "h": 12.889,
    "s": 72.193,
    "l": 36.667
  },
  "oklch": {
    "l": 0.4862,
    "c": 0.14631,
    "h": 35.7
  },
  "luminance": 0.10384
}

Semantic roles & 50–950 ramp

primary

#A1371A

secondary

#51ADC6

accent

#C8EF39

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140804

muted

#837B79

Preview Lab

Preview with #A1371A

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

Preview Lab → · Contrast checker → · Palette generator →