#AC372B#AC372B

#AC372B is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.7% C 0.155 H 29.4°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#AC372B
RGB	rgb(172, 55, 43)
HSL	hsl(6, 60%, 42%)
HSV	hsv(6, 75%, 67%)
CMYK	cmyk(0%, 68%, 75%, 32.5%)
CIE-LAB	lab(40.70, 47.00, 33.88)
CIE-LCH	lch(40.70, 57.94, 35.78°)
OKLab	oklab(50.68% 0.1349 0.076)
OKLCH	oklch(50.68% 0.155 29.4)
XYZ	xyz(18.8176, 11.6802, 3.5487)
Luminance	0.1168 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC372B #2BA0AC

analogous

#AC2B60 #AC372B #AC772B

triadic

#AC372B #2BAC37 #372BAC

tetradic

#AC372B #60AC2B #2BA0AC #772BAC

square

#AC372B #60AC2B #2BA0AC #772BAC

split-complementary

#AC372B #2BAC77 #2B60AC

monochromatic

#4A1813 #7B271F #AC372B #D05144 #DC7F75

Accessibility & contrast

On white

6.30

#AC372B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#AC372B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC372B

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC372B	#FFFFFF	#000000	##FFFFFF
##AC372B	1.00	6.30	3.34	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585029

Deuteranopia (green-blind)

#756927

Tritanopia (blue-blind)

#BD1435

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ac372b;
/* rgb */ color: rgb(172, 55, 43);
/* oklch */ color: oklch(50.7% 0.155 29.4);

Tailwind

colors: {
  custom: {
    50: '#cd7565',
    500: '#ac372b',
    950: '#000000',
  },
}

SCSS

$custom: #ac372b;
$custom-light: #cd7565;
$custom-dark: #000000;

JSON

{
  "hex": "#ac372b",
  "rgb": {
    "r": 172,
    "g": 55,
    "b": 43
  },
  "hsl": {
    "h": 5.581,
    "s": 60,
    "l": 42.157
  },
  "oklch": {
    "l": 0.50682,
    "c": 0.15485,
    "h": 29.4
  },
  "luminance": 0.11677
}

Semantic roles & 50–950 ramp

primary

#AC372B

secondary

#6FBCC4

accent

#D4E345

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #AC372B

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

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