#AC313B#AC313B

#AC313B is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.3% C 0.159 H 20.6°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#AC313B
RGB	rgb(172, 49, 59)
HSL	hsl(355, 56%, 43%)
HSV	hsv(355, 72%, 67%)
CMYK	cmyk(0%, 71.5%, 65.7%, 32.5%)
CIE-LAB	lab(40.06, 50.23, 23.54)
CIE-LCH	lch(40.06, 55.47, 25.11°)
OKLab	oklab(50.27% 0.1485 0.0559)
OKLCH	oklch(50.27% 0.159 20.6)
XYZ	xyz(18.9030, 11.2858, 5.3198)
Luminance	0.1128 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC313B #31ACA2

analogous

#AC3178 #AC313B #AC6431

triadic

#AC313B #3BAC31 #313BAC

tetradic

#AC313B #78AC31 #31ACA2 #6431AC

square

#AC313B #78AC31 #31ACA2 #6431AC

split-complementary

#AC313B #31AC64 #3178AC

monochromatic

#4D161A #7C232B #AC313B #CC4E58 #DA7D85

Accessibility & contrast

On white

6.45

#AC313B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#AC313B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC313B

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC313B	#FFFFFF	#000000	##FFFFFF
##AC313B	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534E3A

Deuteranopia (green-blind)

#726837

Tritanopia (blue-blind)

#BD0936

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #ac313b;
/* rgb */ color: rgb(172, 49, 59);
/* oklch */ color: oklch(50.3% 0.159 20.6);

Tailwind

colors: {
  custom: {
    50: '#cc7270',
    500: '#ac313b',
    950: '#000000',
  },
}

SCSS

$custom: #ac313b;
$custom-light: #cc7270;
$custom-dark: #000000;

JSON

{
  "hex": "#ac313b",
  "rgb": {
    "r": 172,
    "g": 49,
    "b": 59
  },
  "hsl": {
    "h": 355.122,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50274,
    "c": 0.15867,
    "h": 20.6
  },
  "luminance": 0.11283
}

Semantic roles & 50–950 ramp

primary

#AC313B

secondary

#76C3BD

accent

#DFD349

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #AC313B

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

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