#AC2921#AC2921

#AC2921 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.1% C 0.169 H 28.5°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#AC2921
RGB	rgb(172, 41, 33)
HSL	hsl(3, 68%, 40%)
HSV	hsv(3, 81%, 67%)
CMYK	cmyk(0%, 76.2%, 80.8%, 32.5%)
CIE-LAB	lab(38.67, 51.92, 37.36)
CIE-LCH	lch(38.67, 63.96, 35.74°)
OKLab	oklab(49.13% 0.1483 0.0807)
OKLCH	oklch(49.13% 0.169 28.5)
XYZ	xyz(18.0829, 10.4692, 2.5072)
Luminance	0.1047 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2921 #21A4AC

analogous

#AC215F #AC2921 #AC6E21

triadic

#AC2921 #21AC29 #2921AC

tetradic

#AC2921 #5FAC21 #21A4AC #6E21AC

square

#AC2921 #5FAC21 #21A4AC #6E21AC

split-complementary

#AC2921 #21AC6E #215FAC

monochromatic

#45110D #791D17 #AC2921 #D83C32 #E26D66

Accessibility & contrast

On white

6.79

#AC2921 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#AC2921 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2921

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2921	#FFFFFF	#000000	##FFFFFF
##AC2921	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)

#51491E

Deuteranopia (green-blind)

#72651B

Tritanopia (blue-blind)

#BE0029

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #ac2921;
/* rgb */ color: rgb(172, 41, 33);
/* oklch */ color: oklch(49.1% 0.169 28.5);

Tailwind

colors: {
  custom: {
    50: '#ce6e5d',
    500: '#ac2921',
    950: '#000000',
  },
}

SCSS

$custom: #ac2921;
$custom-light: #ce6e5d;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2921",
  "rgb": {
    "r": 172,
    "g": 41,
    "b": 33
  },
  "hsl": {
    "h": 3.453,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49129,
    "c": 0.1688,
    "h": 28.5
  },
  "luminance": 0.10466
}

Semantic roles & 50–950 ramp

primary

#AC2921

secondary

#62C1C7

accent

#E1EB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #AC2921

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

Preview Lab → · Contrast checker → · Palette generator →