#A0371F#A0371F

#A0371F is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.5% C 0.144 H 34.3°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#A0371F
RGB	rgb(160, 55, 31)
HSL	hsl(11, 68%, 37%)
HSV	hsv(11, 81%, 63%)
CMYK	cmyk(0%, 65.6%, 80.6%, 37.3%)
CIE-LAB	lab(38.39, 42.29, 37.41)
CIE-LCH	lch(38.39, 56.46, 41.49°)
OKLab	oklab(48.5% 0.1192 0.0812)
OKLCH	oklch(48.5% 0.144 34.3)
XYZ	xyz(16.1125, 10.3072, 2.4371)
Luminance	0.1031 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A0371F #1F88A0

analogous

#A01F47 #A0371F #A0781F

triadic

#A0371F #1FA037 #371FA0

tetradic

#A0371F #47A01F #1F88A0 #781FA0

square

#A0371F #47A01F #1F88A0 #781FA0

split-complementary

#A0371F #1FA078 #1F47A0

monochromatic

#39140B #6D2515 #A0371F #D34929 #DF735A

Accessibility & contrast

On white

6.86

#A0371F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#A0371F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A0371F

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A0371F	#FFFFFF	#000000	##FFFFFF
##A0371F	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554C1B

Deuteranopia (green-blind)

#6F631B

Tritanopia (blue-blind)

#B01932

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a0371f;
/* rgb */ color: rgb(160, 55, 31);
/* oklch */ color: oklch(48.5% 0.144 34.3);

Tailwind

colors: {
  custom: {
    50: '#c4735c',
    500: '#a0371f',
    950: '#000000',
  },
}

SCSS

$custom: #a0371f;
$custom-light: #c4735c;
$custom-dark: #000000;

JSON

{
  "hex": "#a0371f",
  "rgb": {
    "r": 160,
    "g": 55,
    "b": 31
  },
  "hsl": {
    "h": 11.163,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.48495,
    "c": 0.1442,
    "h": 34.3
  },
  "luminance": 0.10305
}

Semantic roles & 50–950 ramp

primary

#A0371F

secondary

#58AFC3

accent

#CAEA3D

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140804

muted

#837B79

Preview Lab

Preview with #A0371F

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

Preview Lab → · Contrast checker → · Palette generator →