#AC2721#AC2721

#AC2721 is a mid, vivid red. Relative luminance 0.103; OKLCH L 49.0% C 0.170 H 28.1°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#AC2721
RGB	rgb(172, 39, 33)
HSL	hsl(3, 68%, 40%)
HSV	hsv(3, 81%, 67%)
CMYK	cmyk(0%, 77.3%, 80.8%, 32.5%)
CIE-LAB	lab(38.44, 52.58, 37.13)
CIE-LCH	lch(38.44, 64.36, 35.23°)
OKLab	oklab(48.95% 0.1504 0.0801)
OKLCH	oklch(48.95% 0.17 28.1)
XYZ	xyz(18.0155, 10.3344, 2.4847)
Luminance	0.1033 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2721 #21A6AC

analogous

#AC2160 #AC2721 #AC6C21

triadic

#AC2721 #21AC27 #2721AC

tetradic

#AC2721 #60AC21 #21A6AC #6C21AC

square

#AC2721 #60AC21 #21A6AC #6C21AC

split-complementary

#AC2721 #21AC6C #2160AC

monochromatic

#45100D #791B17 #AC2721 #D83A32 #E26B66

Accessibility & contrast

On white

6.85

#AC2721 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#AC2721 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2721

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2721	#FFFFFF	#000000	##FFFFFF
##AC2721	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50481F

Deuteranopia (green-blind)

#71651B

Tritanopia (blue-blind)

#BE0027

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #ac2721;
/* rgb */ color: rgb(172, 39, 33);
/* oklch */ color: oklch(49.0% 0.170 28.1);

Tailwind

colors: {
  custom: {
    50: '#ce6d5d',
    500: '#ac2721',
    950: '#000000',
  },
}

SCSS

$custom: #ac2721;
$custom-light: #ce6d5d;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2721",
  "rgb": {
    "r": 172,
    "g": 39,
    "b": 33
  },
  "hsl": {
    "h": 2.59,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.48953,
    "c": 0.17037,
    "h": 28.1
  },
  "luminance": 0.10331
}

Semantic roles & 50–950 ramp

primary

#AC2721

secondary

#62C3C7

accent

#E3EB3D

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #AC2721

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

Preview Lab → · Contrast checker → · Palette generator →