#A4371F#A4371F

#A4371F is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.2% C 0.149 H 33.9°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#A4371F
RGB	rgb(164, 55, 31)
HSL	hsl(11, 68%, 38%)
HSV	hsv(11, 81%, 64%)
CMYK	cmyk(0%, 66.5%, 81.1%, 35.7%)
CIE-LAB	lab(39.12, 43.73, 38.37)
CIE-LCH	lch(39.12, 58.18, 41.26°)
OKLab	oklab(49.18% 0.1233 0.0829)
OKLCH	oklch(49.18% 0.149 33.9)
XYZ	xyz(16.9253, 10.7263, 2.4752)
Luminance	0.1072 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4371F #1F8CA4

analogous

#A41F49 #A4371F #A4791F

triadic

#A4371F #1FA437 #371FA4

tetradic

#A4371F #49A41F #1F8CA4 #791FA4

square

#A4371F #49A41F #1F8CA4 #791FA4

split-complementary

#A4371F #1FA479 #1F49A4

monochromatic

#3D140C #712615 #A4371F #D7492A #E0755D

Accessibility & contrast

On white

6.68

#A4371F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#A4371F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A4371F

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4371F	#FFFFFF	#000000	##FFFFFF
##A4371F	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564D1B

Deuteranopia (green-blind)

#71651A

Tritanopia (blue-blind)

#B51732

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a4371f;
/* rgb */ color: rgb(164, 55, 31);
/* oklch */ color: oklch(49.2% 0.149 33.9);

Tailwind

colors: {
  custom: {
    50: '#c7735d',
    500: '#a4371f',
    950: '#000000',
  },
}

SCSS

$custom: #a4371f;
$custom-light: #c7735d;
$custom-dark: #000000;

JSON

{
  "hex": "#a4371f",
  "rgb": {
    "r": 164,
    "g": 55,
    "b": 31
  },
  "hsl": {
    "h": 10.827,
    "s": 68.205,
    "l": 38.235
  },
  "oklch": {
    "l": 0.49178,
    "c": 0.14854,
    "h": 33.9
  },
  "luminance": 0.10724
}

Semantic roles & 50–950 ramp

primary

#A4371F

secondary

#5AB1C5

accent

#CCEB3D

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A4371F

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

Preview Lab → · Contrast checker → · Palette generator →