#AC3A31#AC3A31

#AC3A31 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.1% C 0.151 H 28.1°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#AC3A31
RGB	rgb(172, 58, 49)
HSL	hsl(4, 56%, 43%)
HSV	hsv(4, 72%, 67%)
CMYK	cmyk(0%, 66.3%, 71.5%, 32.5%)
CIE-LAB	lab(41.25, 46.01, 31.02)
CIE-LCH	lch(41.25, 55.49, 33.99°)
OKLab	oklab(51.12% 0.1331 0.071)
OKLCH	oklch(51.12% 0.151 28.1)
XYZ	xyz(19.0827, 12.0212, 4.2206)
Luminance	0.1202 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3A31 #31A3AC

analogous

#AC3165 #AC3A31 #AC7731

triadic

#AC3A31 #31AC3A #3A31AC

tetradic

#AC3A31 #65AC31 #31A3AC #7731AC

square

#AC3A31 #65AC31 #31A3AC #7731AC

split-complementary

#AC3A31 #31AC77 #3165AC

monochromatic

#4D1A16 #7C2A23 #AC3A31 #CC574E #DA847D

Accessibility & contrast

On white

6.17

#AC3A31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#AC3A31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3A31

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3A31	#FFFFFF	#000000	##FFFFFF
##AC3A31	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A522F

Deuteranopia (green-blind)

#766A2D

Tritanopia (blue-blind)

#BD1C39

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #ac3a31;
/* rgb */ color: rgb(172, 58, 49);
/* oklch */ color: oklch(51.1% 0.151 28.1);

Tailwind

colors: {
  custom: {
    50: '#cc7669',
    500: '#ac3a31',
    950: '#000000',
  },
}

SCSS

$custom: #ac3a31;
$custom-light: #cc7669;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3a31",
  "rgb": {
    "r": 172,
    "g": 58,
    "b": 49
  },
  "hsl": {
    "h": 4.39,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.51116,
    "c": 0.15083,
    "h": 28.1
  },
  "luminance": 0.12019
}

Semantic roles & 50–950 ramp

primary

#AC3A31

secondary

#76BDC3

accent

#D4DF49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AC3A31

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

Preview Lab → · Contrast checker → · Palette generator →