#AC3B31#AC3B31

#AC3B31 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.2% C 0.150 H 28.5°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#AC3B31
RGB	rgb(172, 59, 49)
HSL	hsl(5, 56%, 43%)
HSV	hsv(5, 72%, 67%)
CMYK	cmyk(0%, 65.7%, 71.5%, 32.5%)
CIE-LAB	lab(41.41, 45.58, 31.21)
CIE-LCH	lch(41.41, 55.24, 34.40°)
OKLab	oklab(51.24% 0.1317 0.0714)
OKLCH	oklch(51.24% 0.15 28.5)
XYZ	xyz(19.1336, 12.1231, 4.2376)
Luminance	0.1212 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3B31 #31A2AC

analogous

#AC3164 #AC3B31 #AC7831

triadic

#AC3B31 #31AC3B #3B31AC

tetradic

#AC3B31 #64AC31 #31A2AC #7831AC

square

#AC3B31 #64AC31 #31A2AC #7831AC

split-complementary

#AC3B31 #31AC78 #3164AC

monochromatic

#4D1A16 #7C2B23 #AC3B31 #CC584E #DA857D

Accessibility & contrast

On white

6.13

#AC3B31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#AC3B31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3B31

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3B31	#FFFFFF	#000000	##FFFFFF
##AC3B31	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A522F

Deuteranopia (green-blind)

#766B2D

Tritanopia (blue-blind)

#BD1E39

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #ac3b31;
/* rgb */ color: rgb(172, 59, 49);
/* oklch */ color: oklch(51.2% 0.150 28.5);

Tailwind

colors: {
  custom: {
    50: '#cc7769',
    500: '#ac3b31',
    950: '#000000',
  },
}

SCSS

$custom: #ac3b31;
$custom-light: #cc7769;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3b31",
  "rgb": {
    "r": 172,
    "g": 59,
    "b": 49
  },
  "hsl": {
    "h": 4.878,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.51237,
    "c": 0.14982,
    "h": 28.5
  },
  "luminance": 0.1212
}

Semantic roles & 50–950 ramp

primary

#AC3B31

secondary

#76BDC3

accent

#D3DF49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AC3B31

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

Preview Lab → · Contrast checker → · Palette generator →