#A4373B#A4373B

#A4373B is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.6% C 0.144 H 22.0°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#A4373B
RGB	rgb(164, 55, 59)
HSL	hsl(358, 50%, 43%)
HSV	hsv(358, 66%, 64%)
CMYK	cmyk(0%, 66.5%, 64%, 35.7%)
CIE-LAB	lab(39.48, 45.11, 22.50)
CIE-LCH	lch(39.48, 50.41, 26.51°)
OKLab	oklab(49.57% 0.1333 0.0538)
OKLCH	oklch(49.57% 0.144 22)
XYZ	xyz(17.4672, 10.9431, 5.3293)
Luminance	0.1094 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4373B #37A4A0

analogous

#A43771 #A4373B #A46937

triadic

#A4373B #3BA437 #373BA4

tetradic

#A4373B #71A437 #37A4A0 #6937A4

square

#A4373B #71A437 #37A4A0 #6937A4

split-complementary

#A4373B #37A469 #3771A4

monochromatic

#48181A #76282B #A4373B #C55357 #D58184

Accessibility & contrast

On white

6.59

#A4373B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#A4373B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A4373B

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4373B	#FFFFFF	#000000	##FFFFFF
##A4373B	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544E3A

Deuteranopia (green-blind)

#6F6638

Tritanopia (blue-blind)

#B41E39

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a4373b;
/* rgb */ color: rgb(164, 55, 59);
/* oklch */ color: oklch(49.6% 0.144 22.0);

Tailwind

colors: {
  custom: {
    50: '#c57471',
    500: '#a4373b',
    950: '#000000',
  },
}

SCSS

$custom: #a4373b;
$custom-light: #c57471;
$custom-dark: #000000;

JSON

{
  "hex": "#a4373b",
  "rgb": {
    "r": 164,
    "g": 55,
    "b": 59
  },
  "hsl": {
    "h": 357.798,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49573,
    "c": 0.14373,
    "h": 22
  },
  "luminance": 0.10941
}

Semantic roles & 50–950 ramp

primary

#A4373B

secondary

#79BEBC

accent

#D9D44F

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140907

muted

#827B7A

Preview Lab

Preview with #A4373B

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

Preview Lab → · Contrast checker → · Palette generator →