#AC2221#AC2221

#AC2221 is a mid, vivid red. Relative luminance 0.100; OKLCH L 48.5% C 0.174 H 27.0°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#AC2221
RGB	rgb(172, 34, 33)
HSL	hsl(0, 68%, 40%)
HSV	hsv(0, 81%, 67%)
CMYK	cmyk(0%, 80.2%, 80.8%, 32.5%)
CIE-LAB	lab(37.89, 54.10, 36.58)
CIE-LCH	lch(37.89, 65.31, 34.06°)
OKLab	oklab(48.55% 0.1552 0.0789)
OKLCH	oklch(48.55% 0.174 27)
XYZ	xyz(17.8620, 10.0274, 2.4335)
Luminance	0.1003 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2221 #21ABAC

analogous

#AC2165 #AC2221 #AC6821

triadic

#AC2221 #21AC22 #2221AC

tetradic

#AC2221 #65AC21 #21ABAC #6821AC

square

#AC2221 #65AC21 #21ABAC #6821AC

split-complementary

#AC2221 #21AC68 #2165AC

monochromatic

#450E0D #791817 #AC2221 #D83432 #E26766

Accessibility & contrast

On white

6.99

#AC2221 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#AC2221 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2221

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2221	#FFFFFF	#000000	##FFFFFF
##AC2221	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E461F

Deuteranopia (green-blind)

#70641A

Tritanopia (blue-blind)

#BE0024

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #ac2221;
/* rgb */ color: rgb(172, 34, 33);
/* oklch */ color: oklch(48.5% 0.174 27.0);

Tailwind

colors: {
  custom: {
    50: '#ce6b5d',
    500: '#ac2221',
    950: '#000000',
  },
}

SCSS

$custom: #ac2221;
$custom-light: #ce6b5d;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2221",
  "rgb": {
    "r": 172,
    "g": 34,
    "b": 33
  },
  "hsl": {
    "h": 0.432,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.48549,
    "c": 0.17408,
    "h": 27
  },
  "luminance": 0.10025
}

Semantic roles & 50–950 ramp

primary

#AC2221

secondary

#62C6C7

accent

#E9EB3D

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160704

muted

#847A79

Preview Lab

Preview with #AC2221

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

Preview Lab → · Contrast checker → · Palette generator →