#AC3237#AC3237

#AC3237 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.3% C 0.158 H 22.8°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#AC3237
RGB	rgb(172, 50, 55)
HSL	hsl(358, 55%, 44%)
HSV	hsv(358, 71%, 67%)
CMYK	cmyk(0%, 70.9%, 68%, 32.5%)
CIE-LAB	lab(40.13, 49.61, 26.09)
CIE-LCH	lch(40.13, 56.05, 27.73°)
OKLab	oklab(50.31% 0.1457 0.0611)
OKLCH	oklch(50.31% 0.158 22.8)
XYZ	xyz(18.8455, 11.3305, 4.8084)
Luminance	0.1133 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3237 #32ACA7

analogous

#AC3274 #AC3237 #AC6A32

triadic

#AC3237 #37AC32 #3237AC

tetradic

#AC3237 #74AC32 #32ACA7 #6A32AC

square

#AC3237 #74AC32 #32ACA7 #6A32AC

split-complementary

#AC3237 #32AC6A #3274AC

monochromatic

#4D1619 #7D2428 #AC3237 #CC4F54 #DA7F82

Accessibility & contrast

On white

6.43

#AC3237 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#AC3237 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3237

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3237	#FFFFFF	#000000	##FFFFFF
##AC3237	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544E36

Deuteranopia (green-blind)

#736833

Tritanopia (blue-blind)

#BD0A35

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ac3237;
/* rgb */ color: rgb(172, 50, 55);
/* oklch */ color: oklch(50.3% 0.158 22.8);

Tailwind

colors: {
  custom: {
    50: '#cc726e',
    500: '#ac3237',
    950: '#000000',
  },
}

SCSS

$custom: #ac3237;
$custom-light: #cc726e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3237",
  "rgb": {
    "r": 172,
    "g": 50,
    "b": 55
  },
  "hsl": {
    "h": 357.541,
    "s": 54.955,
    "l": 43.529
  },
  "oklch": {
    "l": 0.50308,
    "c": 0.158,
    "h": 22.8
  },
  "luminance": 0.11328
}

Semantic roles & 50–950 ramp

primary

#AC3237

secondary

#77C3C0

accent

#DED84A

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #AC3237

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

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