#AC2931#AC2931

#AC2931 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.3% C 0.167 H 22.9°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#AC2931
RGB	rgb(172, 41, 49)
HSL	hsl(356, 62%, 42%)
HSV	hsv(356, 76%, 67%)
CMYK	cmyk(0%, 76.2%, 71.5%, 32.5%)
CIE-LAB	lab(38.87, 52.56, 28.22)
CIE-LCH	lch(38.87, 59.65, 28.23°)
OKLab	oklab(49.34% 0.1538 0.0649)
OKLCH	oklch(49.34% 0.167 22.9)
XYZ	xyz(18.3627, 10.5811, 3.9806)
Luminance	0.1058 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2931 #29ACA4

analogous

#AC2973 #AC2931 #AC6329

triadic

#AC2931 #31AC29 #2931AC

tetradic

#AC2931 #73AC29 #29ACA4 #6329AC

square

#AC2931 #73AC29 #29ACA4 #6329AC

split-complementary

#AC2931 #29AC63 #2973AC

monochromatic

#491115 #7B1D23 #AC2931 #D24149 #DD7279

Accessibility & contrast

On white

6.74

#AC2931 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#AC2931 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2931

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2931	#FFFFFF	#000000	##FFFFFF
##AC2931	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504A30

Deuteranopia (green-blind)

#71662D

Tritanopia (blue-blind)

#BD002D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #ac2931;
/* rgb */ color: rgb(172, 41, 49);
/* oklch */ color: oklch(49.3% 0.167 22.9);

Tailwind

colors: {
  custom: {
    50: '#cd6e69',
    500: '#ac2931',
    950: '#000000',
  },
}

SCSS

$custom: #ac2931;
$custom-light: #cd6e69;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2931",
  "rgb": {
    "r": 172,
    "g": 41,
    "b": 49
  },
  "hsl": {
    "h": 356.336,
    "s": 61.502,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49335,
    "c": 0.16688,
    "h": 22.9
  },
  "luminance": 0.10578
}

Semantic roles & 50–950 ramp

primary

#AC2931

secondary

#6CC5BF

accent

#E5DB43

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #AC2931

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

Preview Lab → · Contrast checker → · Palette generator →