#AC2B1F#AC2B1F

#AC2B1F is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.3% C 0.167 H 29.6°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#AC2B1F
RGB	rgb(172, 43, 31)
HSL	hsl(5, 69%, 40%)
HSV	hsv(5, 82%, 67%)
CMYK	cmyk(0%, 75%, 82%, 32.5%)
CIE-LAB	lab(38.90, 51.17, 38.67)
CIE-LCH	lch(38.90, 64.14, 37.08°)
OKLab	oklab(49.29% 0.1456 0.0828)
OKLCH	oklch(49.29% 0.167 29.6)
XYZ	xyz(18.1266, 10.6002, 2.3877)
Luminance	0.1060 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2B1F #1FA0AC

analogous

#AC1F5A #AC2B1F #AC711F

triadic

#AC2B1F #1FAC2B #2B1FAC

tetradic

#AC2B1F #5AAC1F #1FA0AC #711FAC

square

#AC2B1F #5AAC1F #1FA0AC #711FAC

split-complementary

#AC2B1F #1FAC71 #1F5AAC

monochromatic

#44110C #781E16 #AC2B1F #D93D2F #E36E63

Accessibility & contrast

On white

6.73

#AC2B1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#AC2B1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2B1F

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2B1F	#FFFFFF	#000000	##FFFFFF
##AC2B1F	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534A1C

Deuteranopia (green-blind)

#726619

Tritanopia (blue-blind)

#BE002A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #ac2b1f;
/* rgb */ color: rgb(172, 43, 31);
/* oklch */ color: oklch(49.3% 0.167 29.6);

Tailwind

colors: {
  custom: {
    50: '#ce6f5c',
    500: '#ac2b1f',
    950: '#000000',
  },
}

SCSS

$custom: #ac2b1f;
$custom-light: #ce6f5c;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2b1f",
  "rgb": {
    "r": 172,
    "g": 43,
    "b": 31
  },
  "hsl": {
    "h": 5.106,
    "s": 69.458,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49292,
    "c": 0.16747,
    "h": 29.6
  },
  "luminance": 0.10597
}

Semantic roles & 50–950 ramp

primary

#AC2B1F

secondary

#5FBFC8

accent

#DDEC3C

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #AC2B1F

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

Preview Lab → · Contrast checker → · Palette generator →