#AC373A#AC373A

#AC373A is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.9% C 0.153 H 23.0°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#AC373A
RGB	rgb(172, 55, 58)
HSL	hsl(358, 52%, 45%)
HSV	hsv(358, 68%, 67%)
CMYK	cmyk(0%, 68%, 66.3%, 32.5%)
CIE-LAB	lab(40.91, 47.77, 25.22)
CIE-LCH	lch(40.91, 54.03, 27.83°)
OKLab	oklab(50.91% 0.1405 0.0596)
OKLCH	oklch(50.91% 0.153 23)
XYZ	xyz(19.1451, 11.8112, 5.2738)
Luminance	0.1181 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC373A #37ACA9

analogous

#AC3774 #AC373A #AC6F37

triadic

#AC373A #3AAC37 #373AAC

tetradic

#AC373A #74AC37 #37ACA9 #6F37AC

square

#AC373A #74AC37 #37ACA9 #6F37AC

split-complementary

#AC373A #37AC6F #3774AC

monochromatic

#4F191B #7E282A #AC373A #C9575A #D88587

Accessibility & contrast

On white

6.25

#AC373A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#AC373A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC373A

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC373A	#FFFFFF	#000000	##FFFFFF
##AC373A	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575139

Deuteranopia (green-blind)

#746A37

Tritanopia (blue-blind)

#BD1939

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ac373a;
/* rgb */ color: rgb(172, 55, 58);
/* oklch */ color: oklch(50.9% 0.153 23.0);

Tailwind

colors: {
  custom: {
    50: '#cc7570',
    500: '#ac373a',
    950: '#000000',
  },
}

SCSS

$custom: #ac373a;
$custom-light: #cc7570;
$custom-dark: #000000;

JSON

{
  "hex": "#ac373a",
  "rgb": {
    "r": 172,
    "g": 55,
    "b": 58
  },
  "hsl": {
    "h": 358.462,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.50908,
    "c": 0.15261,
    "h": 23
  },
  "luminance": 0.11809
}

Semantic roles & 50–950 ramp

primary

#AC373A

secondary

#7DC2C0

accent

#DBD74D

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #AC373A

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

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