#AC231E#AC231E

#AC231E is a mid, vivid red. Relative luminance 0.101; OKLCH L 48.6% C 0.174 H 28.0°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#AC231E
RGB	rgb(172, 35, 30)
HSL	hsl(2, 70%, 40%)
HSV	hsv(2, 83%, 67%)
CMYK	cmyk(0%, 79.7%, 82.6%, 32.5%)
CIE-LAB	lab(37.97, 53.72, 38.31)
CIE-LCH	lch(37.97, 65.98, 35.50°)
OKLab	oklab(48.6% 0.1533 0.0817)
OKLCH	oklch(48.6% 0.174 28)
XYZ	xyz(17.8508, 10.0694, 2.2317)
Luminance	0.1007 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC231E #1EA7AC

analogous

#AC1E60 #AC231E #AC6A1E

triadic

#AC231E #1EAC23 #231EAC

tetradic

#AC231E #60AC1E #1EA7AC #6A1EAC

square

#AC231E #60AC1E #1EA7AC #6A1EAC

split-complementary

#AC231E #1EAC6A #1E60AC

monochromatic

#440E0C #781815 #AC231E #DA332D #E36661

Accessibility & contrast

On white

6.97

#AC231E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#AC231E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC231E

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC231E	#FFFFFF	#000000	##FFFFFF
##AC231E	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F461B

Deuteranopia (green-blind)

#706417

Tritanopia (blue-blind)

#BE0024

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #ac231e;
/* rgb */ color: rgb(172, 35, 30);
/* oklch */ color: oklch(48.6% 0.174 28.0);

Tailwind

colors: {
  custom: {
    50: '#ce6b5b',
    500: '#ac231e',
    950: '#000000',
  },
}

SCSS

$custom: #ac231e;
$custom-light: #ce6b5b;
$custom-dark: #000000;

JSON

{
  "hex": "#ac231e",
  "rgb": {
    "r": 172,
    "g": 35,
    "b": 30
  },
  "hsl": {
    "h": 2.113,
    "s": 70.297,
    "l": 39.608
  },
  "oklch": {
    "l": 0.48595,
    "c": 0.17373,
    "h": 28
  },
  "luminance": 0.10066
}

Semantic roles & 50–950 ramp

primary

#AC231E

secondary

#5EC4C8

accent

#E7ED3B

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160704

muted

#847A79

Preview Lab

Preview with #AC231E

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

Preview Lab → · Contrast checker → · Palette generator →