#AC2A21#AC2A21

#AC2A21 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.2% C 0.168 H 28.8°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#AC2A21
RGB	rgb(172, 42, 33)
HSL	hsl(4, 68%, 40%)
HSV	hsv(4, 81%, 67%)
CMYK	cmyk(0%, 75.6%, 80.8%, 32.5%)
CIE-LAB	lab(38.79, 51.58, 37.48)
CIE-LCH	lch(38.79, 63.76, 36.01°)
OKLab	oklab(49.22% 0.1472 0.0809)
OKLCH	oklch(49.22% 0.168 28.8)
XYZ	xyz(18.1179, 10.5392, 2.5188)
Luminance	0.1054 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2A21 #21A3AC

analogous

#AC215D #AC2A21 #AC7021

triadic

#AC2A21 #21AC2A #2A21AC

tetradic

#AC2A21 #5DAC21 #21A3AC #7021AC

square

#AC2A21 #5DAC21 #21A3AC #7021AC

split-complementary

#AC2A21 #21AC70 #215DAC

monochromatic

#45110D #791D17 #AC2A21 #D83D32 #E26E66

Accessibility & contrast

On white

6.76

#AC2A21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#AC2A21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2A21

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2A21	#FFFFFF	#000000	##FFFFFF
##AC2A21	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52491E

Deuteranopia (green-blind)

#72661B

Tritanopia (blue-blind)

#BE0029

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #ac2a21;
/* rgb */ color: rgb(172, 42, 33);
/* oklch */ color: oklch(49.2% 0.168 28.8);

Tailwind

colors: {
  custom: {
    50: '#ce6e5d',
    500: '#ac2a21',
    950: '#000000',
  },
}

SCSS

$custom: #ac2a21;
$custom-light: #ce6e5d;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2a21",
  "rgb": {
    "r": 172,
    "g": 42,
    "b": 33
  },
  "hsl": {
    "h": 3.885,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.4922,
    "c": 0.16799,
    "h": 28.8
  },
  "luminance": 0.10536
}

Semantic roles & 50–950 ramp

primary

#AC2A21

secondary

#62C0C7

accent

#DFEB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #AC2A21

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

Preview Lab → · Contrast checker → · Palette generator →