#AC291F#AC291F

#AC291F is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.1% C 0.169 H 29.1°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#AC291F
RGB	rgb(172, 41, 31)
HSL	hsl(4, 69%, 40%)
HSV	hsv(4, 82%, 67%)
CMYK	cmyk(0%, 76.2%, 82%, 32.5%)
CIE-LAB	lab(38.65, 51.86, 38.43)
CIE-LCH	lch(38.65, 64.55, 36.55°)
OKLab	oklab(49.11% 0.1477 0.0823)
OKLCH	oklch(49.11% 0.169 29.1)
XYZ	xyz(18.0557, 10.4583, 2.3640)
Luminance	0.1046 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC291F #1FA2AC

analogous

#AC1F5C #AC291F #AC6F1F

triadic

#AC291F #1FAC29 #291FAC

tetradic

#AC291F #5CAC1F #1FA2AC #6F1FAC

square

#AC291F #5CAC1F #1FA2AC #6F1FAC

split-complementary

#AC291F #1FAC6F #1F5CAC

monochromatic

#44100C #781D16 #AC291F #D93B2F #E36C63

Accessibility & contrast

On white

6.79

#AC291F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#AC291F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC291F

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC291F	#FFFFFF	#000000	##FFFFFF
##AC291F	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52491C

Deuteranopia (green-blind)

#726518

Tritanopia (blue-blind)

#BE0028

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #ac291f;
/* rgb */ color: rgb(172, 41, 31);
/* oklch */ color: oklch(49.1% 0.169 29.1);

Tailwind

colors: {
  custom: {
    50: '#ce6e5c',
    500: '#ac291f',
    950: '#000000',
  },
}

SCSS

$custom: #ac291f;
$custom-light: #ce6e5c;
$custom-dark: #000000;

JSON

{
  "hex": "#ac291f",
  "rgb": {
    "r": 172,
    "g": 41,
    "b": 31
  },
  "hsl": {
    "h": 4.255,
    "s": 69.458,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49109,
    "c": 0.16907,
    "h": 29.1
  },
  "luminance": 0.10455
}

Semantic roles & 50–950 ramp

primary

#AC291F

secondary

#5FC0C8

accent

#E0EC3C

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #AC291F

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

Preview Lab → · Contrast checker → · Palette generator →