#A43831#A43831

#A43831 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.5% C 0.144 H 27.3°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#A43831
RGB	rgb(164, 56, 49)
HSL	hsl(4, 54%, 42%)
HSV	hsv(4, 70%, 64%)
CMYK	cmyk(0%, 65.9%, 70.1%, 35.7%)
CIE-LAB	lab(39.49, 44.08, 28.59)
CIE-LCH	lch(39.49, 52.54, 32.97°)
OKLab	oklab(49.52% 0.128 0.0661)
OKLCH	oklch(49.52% 0.144 27.3)
XYZ	xyz(17.2802, 10.9451, 4.1078)
Luminance	0.1094 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43831 #319DA4

analogous

#A43164 #A43831 #A47231

triadic

#A43831 #31A438 #3831A4

tetradic

#A43831 #64A431 #319DA4 #7231A4

square

#A43831 #64A431 #319DA4 #7231A4

split-complementary

#A43831 #31A472 #3164A4

monochromatic

#461815 #752823 #A43831 #C95149 #D77E79

Accessibility & contrast

On white

6.59

#A43831 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#A43831 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43831

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43831	#FFFFFF	#000000	##FFFFFF
##A43831	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554E2F

Deuteranopia (green-blind)

#70662E

Tritanopia (blue-blind)

#B41D37

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a43831;
/* rgb */ color: rgb(164, 56, 49);
/* oklch */ color: oklch(49.5% 0.144 27.3);

Tailwind

colors: {
  custom: {
    50: '#c67469',
    500: '#a43831',
    950: '#000000',
  },
}

SCSS

$custom: #a43831;
$custom-light: #c67469;
$custom-dark: #000000;

JSON

{
  "hex": "#a43831",
  "rgb": {
    "r": 164,
    "g": 56,
    "b": 49
  },
  "hsl": {
    "h": 3.652,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49524,
    "c": 0.14401,
    "h": 27.3
  },
  "luminance": 0.10943
}

Semantic roles & 50–950 ramp

primary

#A43831

secondary

#72BABF

accent

#D4DD4A

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A43831

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

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