#A43421#A43421

#A43421 is a mid, vivid red. Relative luminance 0.105; OKLCH L 48.8% C 0.151 H 32.1°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#A43421
RGB	rgb(164, 52, 33)
HSL	hsl(9, 66%, 39%)
HSV	hsv(9, 80%, 64%)
CMYK	cmyk(0%, 68.3%, 79.9%, 35.7%)
CIE-LAB	lab(38.66, 45.09, 36.85)
CIE-LCH	lch(38.66, 58.23, 39.26°)
OKLab	oklab(48.84% 0.1279 0.0802)
OKLCH	oklch(48.84% 0.151 32.1)
XYZ	xyz(16.8143, 10.4608, 2.5723)
Luminance	0.1046 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43421 #2191A4

analogous

#A4214F #A43421 #A47521

triadic

#A43421 #21A434 #3421A4

tetradic

#A43421 #4FA421 #2191A4 #7521A4

square

#A43421 #4FA421 #2191A4 #7521A4

split-complementary

#A43421 #21A475 #214FA4

monochromatic

#3E140C #712417 #A43421 #D5462D #DF7360

Accessibility & contrast

On white

6.79

#A43421 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#A43421 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43421

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43421	#FFFFFF	#000000	##FFFFFF
##A43421	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544B1E

Deuteranopia (green-blind)

#70641C

Tritanopia (blue-blind)

#B51030

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a43421;
/* rgb */ color: rgb(164, 52, 33);
/* oklch */ color: oklch(48.8% 0.151 32.1);

Tailwind

colors: {
  custom: {
    50: '#c7725e',
    500: '#a43421',
    950: '#000000',
  },
}

SCSS

$custom: #a43421;
$custom-light: #c7725e;
$custom-dark: #000000;

JSON

{
  "hex": "#a43421",
  "rgb": {
    "r": 164,
    "g": 52,
    "b": 33
  },
  "hsl": {
    "h": 8.702,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.4884,
    "c": 0.15094,
    "h": 32.1
  },
  "luminance": 0.10458
}

Semantic roles & 50–950 ramp

primary

#A43421

secondary

#5DB5C4

accent

#D1E93E

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A43421

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

Preview Lab → · Contrast checker → · Palette generator →