#AC3421#AC3421

#AC3421 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.2% C 0.159 H 31.7°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#AC3421
RGB	rgb(172, 52, 33)
HSL	hsl(8, 68%, 40%)
HSV	hsv(8, 81%, 67%)
CMYK	cmyk(0%, 69.8%, 80.8%, 32.5%)
CIE-LAB	lab(40.15, 47.85, 38.83)
CIE-LCH	lch(40.15, 61.62, 39.06°)
OKLab	oklab(50.23% 0.1356 0.0839)
OKLCH	oklch(50.23% 0.159 31.7)
XYZ	xyz(18.5179, 11.3392, 2.6522)
Luminance	0.1134 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3421 #2199AC

analogous

#AC2154 #AC3421 #AC7921

triadic

#AC3421 #21AC34 #3421AC

tetradic

#AC3421 #54AC21 #2199AC #7921AC

square

#AC3421 #54AC21 #2199AC #7921AC

split-complementary

#AC3421 #21AC79 #2154AC

monochromatic

#45150D #792417 #AC3421 #D84932 #E27766

Accessibility & contrast

On white

6.43

#AC3421 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#AC3421 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3421

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3421	#FFFFFF	#000000	##FFFFFF
##AC3421	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574E1E

Deuteranopia (green-blind)

#75681C

Tritanopia (blue-blind)

#BE0631

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ac3421;
/* rgb */ color: rgb(172, 52, 33);
/* oklch */ color: oklch(50.2% 0.159 31.7);

Tailwind

colors: {
  custom: {
    50: '#cd735e',
    500: '#ac3421',
    950: '#000000',
  },
}

SCSS

$custom: #ac3421;
$custom-light: #cd735e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3421",
  "rgb": {
    "r": 172,
    "g": 52,
    "b": 33
  },
  "hsl": {
    "h": 8.201,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.50231,
    "c": 0.15942,
    "h": 31.7
  },
  "luminance": 0.11336
}

Semantic roles & 50–950 ramp

primary

#AC3421

secondary

#62B9C7

accent

#D3EB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #AC3421

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

Preview Lab → · Contrast checker → · Palette generator →