#B43031#B43031

#B43031 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.4% C 0.169 H 25.1°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#B43031
RGB	rgb(180, 48, 49)
HSL	hsl(360, 58%, 45%)
HSV	hsv(360, 73%, 71%)
CMYK	cmyk(0%, 73.3%, 72.8%, 29.4%)
CIE-LAB	lab(41.28, 52.63, 31.44)
CIE-LCH	lch(41.28, 61.31, 30.85°)
OKLab	oklab(51.41% 0.153 0.0715)
OKLCH	oklch(51.41% 0.169 25.1)
XYZ	xyz(20.4360, 12.0421, 4.1534)
Luminance	0.1204 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43031 #30B4B3

analogous

#B43073 #B43031 #B47130

triadic

#B43031 #31B430 #3031B4

tetradic

#B43031 #73B430 #30B4B3 #7130B4

square

#B43031 #73B430 #30B4B3 #7130B4

split-complementary

#B43031 #30B471 #3073B4

monochromatic

#531617 #842324 #B43031 #D15152 #DD8182

Accessibility & contrast

On white

6.16

#B43031 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B43031 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43031

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43031	#FFFFFF	#000000	##FFFFFF
##B43031	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F30

Deuteranopia (green-blind)

#776C2C

Tritanopia (blue-blind)

#C60032

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b43031;
/* rgb */ color: rgb(180, 48, 49);
/* oklch */ color: oklch(51.4% 0.169 25.1);

Tailwind

colors: {
  custom: {
    50: '#d37269',
    500: '#b43031',
    950: '#000000',
  },
}

SCSS

$custom: #b43031;
$custom-light: #d37269;
$custom-dark: #000000;

JSON

{
  "hex": "#b43031",
  "rgb": {
    "r": 180,
    "g": 48,
    "b": 49
  },
  "hsl": {
    "h": 359.545,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51414,
    "c": 0.16884,
    "h": 25.1
  },
  "luminance": 0.12039
}

Semantic roles & 50–950 ramp

primary

#B43031

secondary

#79C6C6

accent

#E1E047

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B43031

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

Preview Lab → · Contrast checker → · Palette generator →