#AC2428#AC2428

#AC2428 is a mid, vivid red. Relative luminance 0.102; OKLCH L 48.8% C 0.172 H 25.1°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#AC2428
RGB	rgb(172, 36, 40)
HSL	hsl(358, 65%, 41%)
HSV	hsv(358, 79%, 67%)
CMYK	cmyk(0%, 79.1%, 76.7%, 32.5%)
CIE-LAB	lab(38.18, 53.76, 32.84)
CIE-LCH	lch(38.18, 63.00, 31.42°)
OKLab	oklab(48.79% 0.1556 0.0729)
OKLCH	oklch(48.79% 0.172 25.1)
XYZ	xyz(18.0293, 10.1885, 3.0243)
Luminance	0.1019 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2428 #24ACA8

analogous

#AC246C #AC2428 #AC6424

triadic

#AC2428 #28AC24 #2428AC

tetradic

#AC2428 #6CAC24 #24ACA8 #6424AC

square

#AC2428 #6CAC24 #24ACA8 #6424AC

split-complementary

#AC2428 #24AC64 #246CAC

monochromatic

#470F10 #79191C #AC2428 #D5383D #E06A6E

Accessibility & contrast

On white

6.91

#AC2428 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#AC2428 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2428

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2428	#FFFFFF	#000000	##FFFFFF
##AC2428	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4727

Deuteranopia (green-blind)

#706423

Tritanopia (blue-blind)

#BE0027

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #ac2428;
/* rgb */ color: rgb(172, 36, 40);
/* oklch */ color: oklch(48.8% 0.172 25.1);

Tailwind

colors: {
  custom: {
    50: '#ce6c62',
    500: '#ac2428',
    950: '#000000',
  },
}

SCSS

$custom: #ac2428;
$custom-light: #ce6c62;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2428",
  "rgb": {
    "r": 172,
    "g": 36,
    "b": 40
  },
  "hsl": {
    "h": 358.235,
    "s": 65.385,
    "l": 40.784
  },
  "oklch": {
    "l": 0.48786,
    "c": 0.17182,
    "h": 25.1
  },
  "luminance": 0.10186
}

Semantic roles & 50–950 ramp

primary

#AC2428

secondary

#66C6C3

accent

#E8E33F

background

#FDF6F5

surface

#FBECEA

border

#D4C7C6

text

#150805

muted

#837B79

Preview Lab

Preview with #AC2428

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

Preview Lab → · Contrast checker → · Palette generator →