#AC2421#AC2421

#AC2421 is a mid, vivid red. Relative luminance 0.101; OKLCH L 48.7% C 0.173 H 27.4°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#AC2421
RGB	rgb(172, 36, 33)
HSL	hsl(1, 68%, 40%)
HSV	hsv(1, 81%, 67%)
CMYK	cmyk(0%, 79.1%, 80.8%, 32.5%)
CIE-LAB	lab(38.10, 53.51, 36.79)
CIE-LCH	lch(38.10, 64.94, 34.51°)
OKLab	oklab(48.71% 0.1533 0.0794)
OKLCH	oklch(48.71% 0.173 27.4)
XYZ	xyz(17.9208, 10.1451, 2.4532)
Luminance	0.1014 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2421 #21A9AC

analogous

#AC2163 #AC2421 #AC6921

triadic

#AC2421 #21AC24 #2421AC

tetradic

#AC2421 #63AC21 #21A9AC #6921AC

square

#AC2421 #63AC21 #21A9AC #6921AC

split-complementary

#AC2421 #21AC69 #2163AC

monochromatic

#450F0D #791917 #AC2421 #D83632 #E26866

Accessibility & contrast

On white

6.93

#AC2421 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#AC2421 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2421

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2421	#FFFFFF	#000000	##FFFFFF
##AC2421	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F471F

Deuteranopia (green-blind)

#70641A

Tritanopia (blue-blind)

#BE0025

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #ac2421;
/* rgb */ color: rgb(172, 36, 33);
/* oklch */ color: oklch(48.7% 0.173 27.4);

Tailwind

colors: {
  custom: {
    50: '#ce6c5d',
    500: '#ac2421',
    950: '#000000',
  },
}

SCSS

$custom: #ac2421;
$custom-light: #ce6c5d;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2421",
  "rgb": {
    "r": 172,
    "g": 36,
    "b": 33
  },
  "hsl": {
    "h": 1.295,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.48705,
    "c": 0.17264,
    "h": 27.4
  },
  "luminance": 0.10142
}

Semantic roles & 50–950 ramp

primary

#AC2421

secondary

#62C5C7

accent

#E7EB3D

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160704

muted

#847A79

Preview Lab

Preview with #AC2421

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

Preview Lab → · Contrast checker → · Palette generator →