#B43133#B43133

#B43133 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.168 H 24.6°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#B43133
RGB	rgb(180, 49, 51)
HSL	hsl(359, 57%, 45%)
HSV	hsv(359, 73%, 71%)
CMYK	cmyk(0%, 72.8%, 71.7%, 29.4%)
CIE-LAB	lab(41.44, 52.36, 30.43)
CIE-LCH	lch(41.44, 60.56, 30.16°)
OKLab	oklab(51.54% 0.1525 0.0697)
OKLCH	oklch(51.54% 0.168 24.6)
XYZ	xyz(20.5205, 12.1420, 4.3945)
Luminance	0.1214 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43133 #31B4B2

analogous

#B43175 #B43133 #B47131

triadic

#B43133 #33B431 #3133B4

tetradic

#B43133 #75B431 #31B4B2 #7131B4

square

#B43133 #75B431 #31B4B2 #7131B4

split-complementary

#B43133 #31B471 #3175B4

monochromatic

#541718 #842425 #B43133 #D05254 #DD8284

Accessibility & contrast

On white

6.13

#B43133 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B43133 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43133

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43133	#FFFFFF	#000000	##FFFFFF
##B43133	1.00	6.13	3.43	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575032

Deuteranopia (green-blind)

#786C2F

Tritanopia (blue-blind)

#C60033

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b43133;
/* rgb */ color: rgb(180, 49, 51);
/* oklch */ color: oklch(51.5% 0.168 24.6);

Tailwind

colors: {
  custom: {
    50: '#d3736b',
    500: '#b43133',
    950: '#000000',
  },
}

SCSS

$custom: #b43133;
$custom-light: #d3736b;
$custom-dark: #000000;

JSON

{
  "hex": "#b43133",
  "rgb": {
    "r": 180,
    "g": 49,
    "b": 51
  },
  "hsl": {
    "h": 359.084,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.5154,
    "c": 0.1677,
    "h": 24.6
  },
  "luminance": 0.12139
}

Semantic roles & 50–950 ramp

primary

#B43133

secondary

#7BC6C5

accent

#E0DE47

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B43133

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

Preview Lab → · Contrast checker → · Palette generator →