#AC373B#AC373B

#AC373B is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.9% C 0.153 H 22.5°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#AC373B
RGB	rgb(172, 55, 59)
HSL	hsl(358, 52%, 45%)
HSV	hsv(358, 68%, 67%)
CMYK	cmyk(0%, 68%, 65.7%, 32.5%)
CIE-LAB	lab(40.93, 47.83, 24.63)
CIE-LCH	lch(40.93, 53.81, 27.25°)
OKLab	oklab(50.93% 0.1409 0.0584)
OKLCH	oklch(50.93% 0.153 22.5)
XYZ	xyz(19.1708, 11.8215, 5.4091)
Luminance	0.1182 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC373B #37ACA8

analogous

#AC3775 #AC373B #AC6E37

triadic

#AC373B #3BAC37 #373BAC

tetradic

#AC373B #75AC37 #37ACA8 #6E37AC

square

#AC373B #75AC37 #37ACA8 #6E37AC

split-complementary

#AC373B #37AC6E #3775AC

monochromatic

#4F191B #7E282B #AC373B #C9575B #D88588

Accessibility & contrast

On white

6.24

#AC373B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#AC373B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC373B

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC373B	#FFFFFF	#000000	##FFFFFF
##AC373B	1.00	6.24	3.36	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56513A

Deuteranopia (green-blind)

#746A38

Tritanopia (blue-blind)

#BD193A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ac373b;
/* rgb */ color: rgb(172, 55, 59);
/* oklch */ color: oklch(50.9% 0.153 22.5);

Tailwind

colors: {
  custom: {
    50: '#cc7571',
    500: '#ac373b',
    950: '#000000',
  },
}

SCSS

$custom: #ac373b;
$custom-light: #cc7571;
$custom-dark: #000000;

JSON

{
  "hex": "#ac373b",
  "rgb": {
    "r": 172,
    "g": 55,
    "b": 59
  },
  "hsl": {
    "h": 357.949,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.50926,
    "c": 0.15251,
    "h": 22.5
  },
  "luminance": 0.11819
}

Semantic roles & 50–950 ramp

primary

#AC373B

secondary

#7DC2C0

accent

#DBD64D

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #AC373B

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

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