#A43521#A43521

#A43521 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.0% C 0.150 H 32.5°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#A43521
RGB	rgb(164, 53, 33)
HSL	hsl(9, 66%, 39%)
HSV	hsv(9, 80%, 64%)
CMYK	cmyk(0%, 67.7%, 79.9%, 35.7%)
CIE-LAB	lab(38.81, 44.67, 37.01)
CIE-LCH	lch(38.81, 58.01, 39.64°)
OKLab	oklab(48.96% 0.1265 0.0806)
OKLCH	oklch(48.96% 0.15 32.5)
XYZ	xyz(16.8594, 10.5510, 2.5874)
Luminance	0.1055 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43521 #2190A4

analogous

#A4214E #A43521 #A47621

triadic

#A43521 #21A435 #3521A4

tetradic

#A43521 #4EA421 #2190A4 #7621A4

square

#A43521 #4EA421 #2190A4 #7621A4

split-complementary

#A43521 #21A476 #214EA4

monochromatic

#3E140C #712517 #A43521 #D5472D #DF7460

Accessibility & contrast

On white

6.75

#A43521 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#A43521 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43521

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43521	#FFFFFF	#000000	##FFFFFF
##A43521	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554C1E

Deuteranopia (green-blind)

#70641C

Tritanopia (blue-blind)

#B51231

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a43521;
/* rgb */ color: rgb(164, 53, 33);
/* oklch */ color: oklch(49.0% 0.150 32.5);

Tailwind

colors: {
  custom: {
    50: '#c7725e',
    500: '#a43521',
    950: '#000000',
  },
}

SCSS

$custom: #a43521;
$custom-light: #c7725e;
$custom-dark: #000000;

JSON

{
  "hex": "#a43521",
  "rgb": {
    "r": 164,
    "g": 53,
    "b": 33
  },
  "hsl": {
    "h": 9.16,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.48957,
    "c": 0.15001,
    "h": 32.5
  },
  "luminance": 0.10549
}

Semantic roles & 50–950 ramp

primary

#A43521

secondary

#5DB4C4

accent

#CFE93E

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A43521

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

Preview Lab → · Contrast checker → · Palette generator →