#AC3133#AC3133

#AC3133 is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.1% C 0.159 H 24.2°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#AC3133
RGB	rgb(172, 49, 51)
HSL	hsl(359, 56%, 43%)
HSV	hsv(359, 72%, 67%)
CMYK	cmyk(0%, 71.5%, 70.3%, 32.5%)
CIE-LAB	lab(39.93, 49.79, 28.27)
CIE-LCH	lch(39.93, 57.25, 29.59°)
OKLab	oklab(50.14% 0.1454 0.0653)
OKLCH	oklch(50.14% 0.159 24.2)
XYZ	xyz(18.7112, 11.2091, 4.3096)
Luminance	0.1121 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3133 #31ACAA

analogous

#AC3170 #AC3133 #AC6C31

triadic

#AC3133 #33AC31 #3133AC

tetradic

#AC3133 #70AC31 #31ACAA #6C31AC

square

#AC3133 #70AC31 #31ACAA #6C31AC

split-complementary

#AC3133 #31AC6C #3170AC

monochromatic

#4D1617 #7C2325 #AC3133 #CC4E50 #DA7D7F

Accessibility & contrast

On white

6.48

#AC3133 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#AC3133 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3133

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3133	#FFFFFF	#000000	##FFFFFF
##AC3133	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544D32

Deuteranopia (green-blind)

#73682F

Tritanopia (blue-blind)

#BD0433

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #ac3133;
/* rgb */ color: rgb(172, 49, 51);
/* oklch */ color: oklch(50.1% 0.159 24.2);

Tailwind

colors: {
  custom: {
    50: '#cc726b',
    500: '#ac3133',
    950: '#000000',
  },
}

SCSS

$custom: #ac3133;
$custom-light: #cc726b;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3133",
  "rgb": {
    "r": 172,
    "g": 49,
    "b": 51
  },
  "hsl": {
    "h": 359.024,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50138,
    "c": 0.1594,
    "h": 24.2
  },
  "luminance": 0.11206
}

Semantic roles & 50–950 ramp

primary

#AC3133

secondary

#76C3C2

accent

#DFDD49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #AC3133

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

Preview Lab → · Contrast checker → · Palette generator →