#A43D21#A43D21

#A43D21 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.0% C 0.142 H 35.9°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#A43D21
RGB	rgb(164, 61, 33)
HSL	hsl(13, 66%, 39%)
HSV	hsv(13, 80%, 64%)
CMYK	cmyk(0%, 62.8%, 79.9%, 35.7%)
CIE-LAB	lab(40.15, 41.08, 38.35)
CIE-LCH	lch(40.15, 56.20, 43.03°)
OKLab	oklab(49.96% 0.1154 0.0835)
OKLCH	oklch(49.96% 0.142 35.9)
XYZ	xyz(17.2550, 11.3423, 2.7192)
Luminance	0.1134 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43D21 #2188A4

analogous

#A42147 #A43D21 #A47E21

triadic

#A43D21 #21A43D #3D21A4

tetradic

#A43D21 #47A421 #2188A4 #7E21A4

square

#A43D21 #47A421 #2188A4 #7E21A4

split-complementary

#A43D21 #21A47E #2147A4

monochromatic

#3E170C #712A17 #A43D21 #D5512D #DF7B60

Accessibility & contrast

On white

6.43

#A43D21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#A43D21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43D21

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43D21	#FFFFFF	#000000	##FFFFFF
##A43D21	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)

#5A501D

Deuteranopia (green-blind)

#74671D

Tritanopia (blue-blind)

#B52337

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a43d21;
/* rgb */ color: rgb(164, 61, 33);
/* oklch */ color: oklch(50.0% 0.142 35.9);

Tailwind

colors: {
  custom: {
    50: '#c7775e',
    500: '#a43d21',
    950: '#000000',
  },
}

SCSS

$custom: #a43d21;
$custom-light: #c7775e;
$custom-dark: #000000;

JSON

{
  "hex": "#a43d21",
  "rgb": {
    "r": 164,
    "g": 61,
    "b": 33
  },
  "hsl": {
    "h": 12.824,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.49964,
    "c": 0.14247,
    "h": 35.9
  },
  "luminance": 0.1134
}

Semantic roles & 50–950 ramp

primary

#A43D21

secondary

#5DAEC4

accent

#C5E93E

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140904

muted

#837B79

Preview Lab

Preview with #A43D21

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

Preview Lab → · Contrast checker → · Palette generator →