#A43839#A43839

#A43839 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.7% C 0.143 H 23.4°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#A43839
RGB	rgb(164, 56, 57)
HSL	hsl(359, 49%, 43%)
HSV	hsv(359, 66%, 64%)
CMYK	cmyk(0%, 65.9%, 65.2%, 35.7%)
CIE-LAB	lab(39.61, 44.55, 23.90)
CIE-LCH	lch(39.61, 50.55, 28.21°)
OKLab	oklab(49.66% 0.1311 0.0568)
OKLCH	oklch(49.66% 0.143 23.4)
XYZ	xyz(17.4643, 11.0187, 5.0773)
Luminance	0.1102 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43839 #38A4A3

analogous

#A4386F #A43839 #A46D38

triadic

#A43839 #39A438 #3839A4

tetradic

#A43839 #6FA438 #38A4A3 #6D38A4

square

#A43839 #6FA438 #38A4A3 #6D38A4

split-complementary

#A43839 #38A46D #386FA4

monochromatic

#491919 #762829 #A43839 #C55455 #D48283

Accessibility & contrast

On white

6.56

#A43839 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#A43839 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43839

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43839	#FFFFFF	#000000	##FFFFFF
##A43839	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F38

Deuteranopia (green-blind)

#706636

Tritanopia (blue-blind)

#B41F39

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a43839;
/* rgb */ color: rgb(164, 56, 57);
/* oklch */ color: oklch(49.7% 0.143 23.4);

Tailwind

colors: {
  custom: {
    50: '#c5746f',
    500: '#a43839',
    950: '#000000',
  },
}

SCSS

$custom: #a43839;
$custom-light: #c5746f;
$custom-dark: #000000;

JSON

{
  "hex": "#a43839",
  "rgb": {
    "r": 164,
    "g": 56,
    "b": 57
  },
  "hsl": {
    "h": 359.444,
    "s": 49.091,
    "l": 43.137
  },
  "oklch": {
    "l": 0.49657,
    "c": 0.14284,
    "h": 23.4
  },
  "luminance": 0.11016
}

Semantic roles & 50–950 ramp

primary

#A43839

secondary

#7ABEBD

accent

#D9D74F

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140907

muted

#837B7A

Preview Lab

Preview with #A43839

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

Preview Lab → · Contrast checker → · Palette generator →