#A43031#A43031

#A43031 is a mid, vivid red. Relative luminance 0.102; OKLCH L 48.6% C 0.152 H 24.4°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#A43031
RGB	rgb(164, 48, 49)
HSL	hsl(359, 55%, 42%)
HSV	hsv(359, 71%, 64%)
CMYK	cmyk(0%, 70.7%, 70.1%, 35.7%)
CIE-LAB	lab(38.25, 47.44, 27.12)
CIE-LCH	lch(38.25, 54.64, 29.75°)
OKLab	oklab(48.6% 0.1386 0.0628)
OKLCH	oklch(48.6% 0.152 24.4)
XYZ	xyz(16.9230, 10.2307, 3.9888)
Luminance	0.1023 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43031 #30A4A3

analogous

#A4306B #A43031 #A46930

triadic

#A43031 #31A430 #3031A4

tetradic

#A43031 #6BA430 #30A4A3 #6930A4

square

#A43031 #6BA430 #30A4A3 #6930A4

split-complementary

#A43031 #30A469 #306BA4

monochromatic

#451415 #752223 #A43031 #C94849 #D77778

Accessibility & contrast

On white

6.90

#A43031 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#A43031 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43031

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43031	#FFFFFF	#000000	##FFFFFF
##A43031	1.00	6.90	3.05	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514A30

Deuteranopia (green-blind)

#6E632D

Tritanopia (blue-blind)

#B40A32

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a43031;
/* rgb */ color: rgb(164, 48, 49);
/* oklch */ color: oklch(48.6% 0.152 24.4);

Tailwind

colors: {
  custom: {
    50: '#c67069',
    500: '#a43031',
    950: '#000000',
  },
}

SCSS

$custom: #a43031;
$custom-light: #c67069;
$custom-dark: #000000;

JSON

{
  "hex": "#a43031",
  "rgb": {
    "r": 164,
    "g": 48,
    "b": 49
  },
  "hsl": {
    "h": 359.483,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.486,
    "c": 0.15213,
    "h": 24.4
  },
  "luminance": 0.10228
}

Semantic roles & 50–950 ramp

primary

#A43031

secondary

#70BFBF

accent

#DEDD4A

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A43031

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

Preview Lab → · Contrast checker → · Palette generator →