#AC2831#AC2831

#AC2831 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.2% C 0.168 H 22.6°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#AC2831
RGB	rgb(172, 40, 49)
HSL	hsl(356, 62%, 42%)
HSV	hsv(356, 77%, 67%)
CMYK	cmyk(0%, 76.7%, 71.5%, 32.5%)
CIE-LAB	lab(38.75, 52.89, 28.08)
CIE-LCH	lch(38.75, 59.88, 27.96°)
OKLab	oklab(49.25% 0.1548 0.0645)
OKLCH	oklch(49.25% 0.168 22.6)
XYZ	xyz(18.3285, 10.5128, 3.9692)
Luminance	0.1051 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2831 #28ACA3

analogous

#AC2873 #AC2831 #AC6128

triadic

#AC2831 #31AC28 #2831AC

tetradic

#AC2831 #73AC28 #28ACA3 #6128AC

square

#AC2831 #73AC28 #28ACA3 #6128AC

split-complementary

#AC2831 #28AC61 #2873AC

monochromatic

#491115 #7A1C23 #AC2831 #D23F49 #DE7178

Accessibility & contrast

On white

6.77

#AC2831 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#AC2831 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2831

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2831	#FFFFFF	#000000	##FFFFFF
##AC2831	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4930

Deuteranopia (green-blind)

#70652D

Tritanopia (blue-blind)

#BD002D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #ac2831;
/* rgb */ color: rgb(172, 40, 49);
/* oklch */ color: oklch(49.2% 0.168 22.6);

Tailwind

colors: {
  custom: {
    50: '#cd6e69',
    500: '#ac2831',
    950: '#000000',
  },
}

SCSS

$custom: #ac2831;
$custom-light: #cd6e69;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2831",
  "rgb": {
    "r": 172,
    "g": 40,
    "b": 49
  },
  "hsl": {
    "h": 355.909,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.49247,
    "c": 0.16772,
    "h": 22.6
  },
  "luminance": 0.1051
}

Semantic roles & 50–950 ramp

primary

#AC2831

secondary

#6BC5BF

accent

#E5DA42

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #AC2831

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

Preview Lab → · Contrast checker → · Palette generator →