#AC2E21#AC2E21

#AC2E21 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.6% C 0.165 H 29.9°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#AC2E21
RGB	rgb(172, 46, 33)
HSL	hsl(6, 68%, 40%)
HSV	hsv(6, 81%, 67%)
CMYK	cmyk(0%, 73.3%, 80.8%, 32.5%)
CIE-LAB	lab(39.31, 50.16, 37.99)
CIE-LCH	lch(39.31, 62.93, 37.14°)
OKLab	oklab(49.6% 0.1428 0.082)
OKLCH	oklch(49.6% 0.165 29.9)
XYZ	xyz(18.2669, 10.8373, 2.5685)
Luminance	0.1083 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2E21 #219FAC

analogous

#AC2159 #AC2E21 #AC7421

triadic

#AC2E21 #21AC2E #2E21AC

tetradic

#AC2E21 #59AC21 #219FAC #7421AC

square

#AC2E21 #59AC21 #219FAC #7421AC

split-complementary

#AC2E21 #21AC74 #2159AC

monochromatic

#45130D #792017 #AC2E21 #D84232 #E27166

Accessibility & contrast

On white

6.63

#AC2E21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#AC2E21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2E21

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2E21	#FFFFFF	#000000	##FFFFFF
##AC2E21	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544B1E

Deuteranopia (green-blind)

#73671B

Tritanopia (blue-blind)

#BE002C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #ac2e21;
/* rgb */ color: rgb(172, 46, 33);
/* oklch */ color: oklch(49.6% 0.165 29.9);

Tailwind

colors: {
  custom: {
    50: '#ce705e',
    500: '#ac2e21',
    950: '#000000',
  },
}

SCSS

$custom: #ac2e21;
$custom-light: #ce705e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2e21",
  "rgb": {
    "r": 172,
    "g": 46,
    "b": 33
  },
  "hsl": {
    "h": 5.612,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49602,
    "c": 0.16467,
    "h": 29.9
  },
  "luminance": 0.10834
}

Semantic roles & 50–950 ramp

primary

#AC2E21

secondary

#62BEC7

accent

#DAEB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #AC2E21

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

Preview Lab → · Contrast checker → · Palette generator →