#AC311E#AC311E

#AC311E is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.9% C 0.163 H 31.6°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#AC311E
RGB	rgb(172, 49, 30)
HSL	hsl(8, 70%, 40%)
HSV	hsv(8, 83%, 67%)
CMYK	cmyk(0%, 71.5%, 82.6%, 32.5%)
CIE-LAB	lab(39.69, 48.94, 39.96)
CIE-LCH	lch(39.69, 63.18, 39.23°)
OKLab	oklab(49.88% 0.1384 0.0853)
OKLCH	oklch(49.88% 0.163 31.6)
XYZ	xyz(18.3481, 11.0638, 2.3975)
Luminance	0.1106 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC311E #1E99AC

analogous

#AC1E52 #AC311E #AC781E

triadic

#AC311E #1EAC31 #311EAC

tetradic

#AC311E #52AC1E #1E99AC #781EAC

square

#AC311E #52AC1E #1E99AC #781EAC

split-complementary

#AC311E #1EAC78 #1E52AC

monochromatic

#44130C #782215 #AC311E #DA442D #E37261

Accessibility & contrast

On white

6.54

#AC311E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#AC311E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC311E

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC311E	#FFFFFF	#000000	##FFFFFF
##AC311E	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564C1A

Deuteranopia (green-blind)

#746718

Tritanopia (blue-blind)

#BE002E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #ac311e;
/* rgb */ color: rgb(172, 49, 30);
/* oklch */ color: oklch(49.9% 0.163 31.6);

Tailwind

colors: {
  custom: {
    50: '#ce715c',
    500: '#ac311e',
    950: '#000000',
  },
}

SCSS

$custom: #ac311e;
$custom-light: #ce715c;
$custom-dark: #000000;

JSON

{
  "hex": "#ac311e",
  "rgb": {
    "r": 172,
    "g": 49,
    "b": 30
  },
  "hsl": {
    "h": 8.028,
    "s": 70.297,
    "l": 39.608
  },
  "oklch": {
    "l": 0.49879,
    "c": 0.16258,
    "h": 31.6
  },
  "luminance": 0.11061
}

Semantic roles & 50–950 ramp

primary

#AC311E

secondary

#5EBAC8

accent

#D5ED3B

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #AC311E

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

Preview Lab → · Contrast checker → · Palette generator →