#A43131#A43131

#A43131 is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.7% C 0.151 H 24.7°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#A43131
RGB	rgb(164, 49, 49)
HSL	hsl(0, 54%, 42%)
HSV	hsv(0, 70%, 64%)
CMYK	cmyk(0%, 70.1%, 70.1%, 35.7%)
CIE-LAB	lab(38.40, 47.04, 27.29)
CIE-LCH	lch(38.40, 54.38, 30.12°)
OKLab	oklab(48.71% 0.1373 0.0632)
OKLCH	oklch(48.71% 0.151 24.7)
XYZ	xyz(16.9644, 10.3134, 4.0025)
Luminance	0.1031 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43131 #31A4A4

analogous

#A4316B #A43131 #A46B31

triadic

#A43131 #31A431 #3131A4

tetradic

#A43131 #6BA431 #31A4A4 #6B31A4

square

#A43131 #6BA431 #31A4A4 #6B31A4

split-complementary

#A43131 #31A46B #316BA4

monochromatic

#461515 #752323 #A43131 #C94949 #D77979

Accessibility & contrast

On white

6.86

#A43131 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#A43131 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43131

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43131	#FFFFFF	#000000	##FFFFFF
##A43131	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514B30

Deuteranopia (green-blind)

#6E632D

Tritanopia (blue-blind)

#B40D32

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a43131;
/* rgb */ color: rgb(164, 49, 49);
/* oklch */ color: oklch(48.7% 0.151 24.7);

Tailwind

colors: {
  custom: {
    50: '#c67169',
    500: '#a43131',
    950: '#000000',
  },
}

SCSS

$custom: #a43131;
$custom-light: #c67169;
$custom-dark: #000000;

JSON

{
  "hex": "#a43131",
  "rgb": {
    "r": 164,
    "g": 49,
    "b": 49
  },
  "hsl": {
    "h": 0,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48709,
    "c": 0.15114,
    "h": 24.7
  },
  "luminance": 0.10311
}

Semantic roles & 50–950 ramp

primary

#A43131

secondary

#72BFBF

accent

#DDDD4A

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A43131

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

Preview Lab → · Contrast checker → · Palette generator →