#A4373D#A4373D

#A4373D is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.6% C 0.144 H 20.9°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#A4373D
RGB	rgb(164, 55, 61)
HSL	hsl(357, 50%, 43%)
HSV	hsv(357, 66%, 64%)
CMYK	cmyk(0%, 66.5%, 62.8%, 35.7%)
CIE-LAB	lab(39.52, 45.25, 21.31)
CIE-LCH	lch(39.52, 50.01, 25.22°)
OKLab	oklab(49.61% 0.1341 0.0513)
OKLCH	oklch(49.61% 0.144 20.9)
XYZ	xyz(17.5200, 10.9642, 5.6077)
Luminance	0.1096 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4373D #37A49E

analogous

#A43774 #A4373D #A46737

triadic

#A4373D #3DA437 #373DA4

tetradic

#A4373D #74A437 #37A49E #6737A4

square

#A4373D #74A437 #37A49E #6737A4

split-complementary

#A4373D #37A467 #3774A4

monochromatic

#48181B #76282C #A4373D #C55359 #D58185

Accessibility & contrast

On white

6.58

#A4373D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#A4373D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A4373D

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4373D	#FFFFFF	#000000	##FFFFFF
##A4373D	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534E3C

Deuteranopia (green-blind)

#6F663A

Tritanopia (blue-blind)

#B41E3A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a4373d;
/* rgb */ color: rgb(164, 55, 61);
/* oklch */ color: oklch(49.6% 0.144 20.9);

Tailwind

colors: {
  custom: {
    50: '#c57472',
    500: '#a4373d',
    950: '#000000',
  },
}

SCSS

$custom: #a4373d;
$custom-light: #c57472;
$custom-dark: #000000;

JSON

{
  "hex": "#a4373d",
  "rgb": {
    "r": 164,
    "g": 55,
    "b": 61
  },
  "hsl": {
    "h": 356.697,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49611,
    "c": 0.14356,
    "h": 20.9
  },
  "luminance": 0.10962
}

Semantic roles & 50–950 ramp

primary

#A4373D

secondary

#79BEBA

accent

#D9D24F

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140908

muted

#827B7B

Preview Lab

Preview with #A4373D

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

Preview Lab → · Contrast checker → · Palette generator →