#AC2D21#AC2D21

#AC2D21 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.5% C 0.166 H 29.6°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#AC2D21
RGB	rgb(172, 45, 33)
HSL	hsl(5, 68%, 40%)
HSV	hsv(5, 81%, 67%)
CMYK	cmyk(0%, 73.8%, 80.8%, 32.5%)
CIE-LAB	lab(39.17, 50.52, 37.86)
CIE-LCH	lch(39.17, 63.14, 36.85°)
OKLab	oklab(49.5% 0.1439 0.0818)
OKLCH	oklch(49.5% 0.166 29.6)
XYZ	xyz(18.2283, 10.7601, 2.5557)
Luminance	0.1076 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2D21 #21A0AC

analogous

#AC215A #AC2D21 #AC7321

triadic

#AC2D21 #21AC2D #2D21AC

tetradic

#AC2D21 #5AAC21 #21A0AC #7321AC

square

#AC2D21 #5AAC21 #21A0AC #7321AC

split-complementary

#AC2D21 #21AC73 #215AAC

monochromatic

#45120D #792017 #AC2D21 #D84132 #E27066

Accessibility & contrast

On white

6.66

#AC2D21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#AC2D21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2D21

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2D21	#FFFFFF	#000000	##FFFFFF
##AC2D21	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534A1E

Deuteranopia (green-blind)

#73661B

Tritanopia (blue-blind)

#BE002C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #ac2d21;
/* rgb */ color: rgb(172, 45, 33);
/* oklch */ color: oklch(49.5% 0.166 29.6);

Tailwind

colors: {
  custom: {
    50: '#ce6f5e',
    500: '#ac2d21',
    950: '#000000',
  },
}

SCSS

$custom: #ac2d21;
$custom-light: #ce6f5e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2d21",
  "rgb": {
    "r": 172,
    "g": 45,
    "b": 33
  },
  "hsl": {
    "h": 5.18,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49503,
    "c": 0.16552,
    "h": 29.6
  },
  "luminance": 0.10757
}

Semantic roles & 50–950 ramp

primary

#AC2D21

secondary

#62BEC7

accent

#DCEB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #AC2D21

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

Preview Lab → · Contrast checker → · Palette generator →