#A3373E#A3373E

#A3373E is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.5% C 0.142 H 20.3°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#A3373E
RGB	rgb(163, 55, 62)
HSL	hsl(356, 50%, 43%)
HSV	hsv(356, 66%, 64%)
CMYK	cmyk(0%, 66.3%, 62%, 36.1%)
CIE-LAB	lab(39.36, 44.97, 20.45)
CIE-LCH	lch(39.36, 49.40, 24.45°)
OKLab	oklab(49.46% 0.1335 0.0495)
OKLCH	oklch(49.46% 0.142 20.3)
XYZ	xyz(17.3416, 10.8691, 5.7413)
Luminance	0.1087 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3373E #37A39C

analogous

#A33774 #A3373E #A36637

triadic

#A3373E #3EA337 #373EA3

tetradic

#A3373E #74A337 #37A39C #6637A3

square

#A3373E #74A337 #37A39C #6637A3

split-complementary

#A3373E #37A366 #3774A3

monochromatic

#47181B #75282D #A3373E #C5525A #D48086

Accessibility & contrast

On white

6.62

#A3373E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#A3373E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3373E

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3373E	#FFFFFF	#000000	##FFFFFF
##A3373E	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534E3E

Deuteranopia (green-blind)

#6E653B

Tritanopia (blue-blind)

#B31F3A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a3373e;
/* rgb */ color: rgb(163, 55, 62);
/* oklch */ color: oklch(49.5% 0.142 20.3);

Tailwind

colors: {
  custom: {
    50: '#c47473',
    500: '#a3373e',
    950: '#000000',
  },
}

SCSS

$custom: #a3373e;
$custom-light: #c47473;
$custom-dark: #000000;

JSON

{
  "hex": "#a3373e",
  "rgb": {
    "r": 163,
    "g": 55,
    "b": 62
  },
  "hsl": {
    "h": 356.111,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.49463,
    "c": 0.14238,
    "h": 20.3
  },
  "luminance": 0.10867
}

Semantic roles & 50–950 ramp

primary

#A3373E

secondary

#78BEB9

accent

#D9D04F

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140908

muted

#827B7B

Preview Lab

Preview with #A3373E

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

Preview Lab → · Contrast checker → · Palette generator →