#A4372B#A4372B

#A4372B is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.3% C 0.146 H 29.5°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#A4372B
RGB	rgb(164, 55, 43)
HSL	hsl(6, 58%, 41%)
HSV	hsv(6, 74%, 64%)
CMYK	cmyk(0%, 66.5%, 73.8%, 35.7%)
CIE-LAB	lab(39.24, 44.22, 31.85)
CIE-LCH	lch(39.24, 54.49, 35.76°)
OKLab	oklab(49.32% 0.1272 0.072)
OKLCH	oklch(49.32% 0.146 29.5)
XYZ	xyz(17.1139, 10.8018, 3.4688)
Luminance	0.1080 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4372B #2B98A4

analogous

#A42B5C #A4372B #A4732B

triadic

#A4372B #2BA437 #372BA4

tetradic

#A4372B #5CA42B #2B98A4 #732BA4

square

#A4372B #5CA42B #2B98A4 #732BA4

split-complementary

#A4372B #2BA473 #2B5CA4

monochromatic

#431612 #74271E #A4372B #CD4D3F #D97A70

Accessibility & contrast

On white

6.65

#A4372B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#A4372B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A4372B

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4372B	#FFFFFF	#000000	##FFFFFF
##A4372B	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D29

Deuteranopia (green-blind)

#716527

Tritanopia (blue-blind)

#B41935

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a4372b;
/* rgb */ color: rgb(164, 55, 43);
/* oklch */ color: oklch(49.3% 0.146 29.5);

Tailwind

colors: {
  custom: {
    50: '#c67465',
    500: '#a4372b',
    950: '#000000',
  },
}

SCSS

$custom: #a4372b;
$custom-light: #c67465;
$custom-dark: #000000;

JSON

{
  "hex": "#a4372b",
  "rgb": {
    "r": 164,
    "g": 55,
    "b": 43
  },
  "hsl": {
    "h": 5.95,
    "s": 58.454,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49316,
    "c": 0.14613,
    "h": 29.5
  },
  "luminance": 0.10799
}

Semantic roles & 50–950 ramp

primary

#A4372B

secondary

#6AB8C1

accent

#D2E246

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140805

muted

#837B7A

Preview Lab

Preview with #A4372B

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

Preview Lab → · Contrast checker → · Palette generator →