#A1371E#A1371E

#A1371E is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.7% C 0.145 H 34.5°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#A1371E
RGB	rgb(161, 55, 30)
HSL	hsl(11, 69%, 37%)
HSV	hsv(11, 81%, 63%)
CMYK	cmyk(0%, 65.8%, 81.4%, 36.9%)
CIE-LAB	lab(38.56, 42.62, 38.16)
CIE-LCH	lch(38.56, 57.21, 41.84°)
OKLab	oklab(48.66% 0.1199 0.0824)
OKLCH	oklch(48.66% 0.146 34.5)
XYZ	xyz(16.3003, 10.4056, 2.3782)
Luminance	0.1040 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1371E #1E88A1

analogous

#A11E47 #A1371E #A1781E

triadic

#A1371E #1EA137 #371EA1

tetradic

#A1371E #47A11E #1E88A1 #781EA1

square

#A1371E #47A11E #1E88A1 #781EA1

split-complementary

#A1371E #1EA178 #1E47A1

monochromatic

#3A140B #6D2514 #A1371E #D54928 #E07359

Accessibility & contrast

On white

6.82

#A1371E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#A1371E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A1371E

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1371E	#FFFFFF	#000000	##FFFFFF
##A1371E	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554C1A

Deuteranopia (green-blind)

#706419

Tritanopia (blue-blind)

#B11932

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a1371e;
/* rgb */ color: rgb(161, 55, 30);
/* oklch */ color: oklch(48.7% 0.145 34.5);

Tailwind

colors: {
  custom: {
    50: '#c5735c',
    500: '#a1371e',
    950: '#000000',
  },
}

SCSS

$custom: #a1371e;
$custom-light: #c5735c;
$custom-dark: #000000;

JSON

{
  "hex": "#a1371e",
  "rgb": {
    "r": 161,
    "g": 55,
    "b": 30
  },
  "hsl": {
    "h": 11.45,
    "s": 68.586,
    "l": 37.451
  },
  "oklch": {
    "l": 0.48656,
    "c": 0.1455,
    "h": 34.5
  },
  "luminance": 0.10403
}

Semantic roles & 50–950 ramp

primary

#A1371E

secondary

#57AFC4

accent

#CAEB3C

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140804

muted

#837B79

Preview Lab

Preview with #A1371E

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

Preview Lab → · Contrast checker → · Palette generator →