#AC3F31#AC3F31

#AC3F31 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.7% C 0.146 H 30.1°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#AC3F31
RGB	rgb(172, 63, 49)
HSL	hsl(7, 56%, 43%)
HSV	hsv(7, 72%, 67%)
CMYK	cmyk(0%, 63.4%, 71.5%, 32.5%)
CIE-LAB	lab(42.08, 43.79, 31.98)
CIE-LCH	lch(42.08, 54.22, 36.14°)
OKLab	oklab(51.74% 0.1261 0.0731)
OKLCH	oklch(51.74% 0.146 30.1)
XYZ	xyz(19.3472, 12.5501, 4.3088)
Luminance	0.1255 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3F31 #319EAC

analogous

#AC3160 #AC3F31 #AC7C31

triadic

#AC3F31 #31AC3F #3F31AC

tetradic

#AC3F31 #60AC31 #319EAC #7C31AC

square

#AC3F31 #60AC31 #319EAC #7C31AC

split-complementary

#AC3F31 #31AC7C #3160AC

monochromatic

#4D1C16 #7C2E23 #AC3F31 #CC5C4E #DA887D

Accessibility & contrast

On white

5.98

#AC3F31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#AC3F31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3F31

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3F31	#FFFFFF	#000000	##FFFFFF
##AC3F31	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D542F

Deuteranopia (green-blind)

#786C2E

Tritanopia (blue-blind)

#BD253C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #ac3f31;
/* rgb */ color: rgb(172, 63, 49);
/* oklch */ color: oklch(51.7% 0.146 30.1);

Tailwind

colors: {
  custom: {
    50: '#cc796a',
    500: '#ac3f31',
    950: '#000000',
  },
}

SCSS

$custom: #ac3f31;
$custom-light: #cc796a;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3f31",
  "rgb": {
    "r": 172,
    "g": 63,
    "b": 49
  },
  "hsl": {
    "h": 6.829,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.51738,
    "c": 0.14576,
    "h": 30.1
  },
  "luminance": 0.12547
}

Semantic roles & 50–950 ramp

primary

#AC3F31

secondary

#76BAC3

accent

#CEDF49

background

#FDF7F6

surface

#FAEEEB

border

#D3C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AC3F31

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

Preview Lab → · Contrast checker → · Palette generator →