#B43D31#B43D31

#B43D31 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.8% C 0.157 H 29.1°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B43D31
RGB	rgb(180, 61, 49)
HSL	hsl(5, 57%, 45%)
HSV	hsv(5, 73%, 71%)
CMYK	cmyk(0%, 66.1%, 72.8%, 29.4%)
CIE-LAB	lab(43.16, 47.50, 33.59)
CIE-LCH	lch(43.16, 58.18, 35.27°)
OKLab	oklab(52.82% 0.1368 0.0762)
OKLCH	oklch(52.82% 0.157 29.1)
XYZ	xyz(21.0478, 13.2656, 4.3573)
Luminance	0.1326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43D31 #31A8B4

analogous

#B43167 #B43D31 #B47E31

triadic

#B43D31 #31B43D #3D31B4

tetradic

#B43D31 #67B431 #31A8B4 #7E31B4

square

#B43D31 #67B431 #31A8B4 #7E31B4

split-complementary

#B43D31 #31B47E #3167B4

monochromatic

#541C17 #842D24 #B43D31 #D05E52 #DD8B82

Accessibility & contrast

On white

5.75

#B43D31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B43D31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43D31

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43D31	#FFFFFF	#000000	##FFFFFF
##B43D31	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E562F

Deuteranopia (green-blind)

#7C702D

Tritanopia (blue-blind)

#C61D3B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b43d31;
/* rgb */ color: rgb(180, 61, 49);
/* oklch */ color: oklch(52.8% 0.157 29.1);

Tailwind

colors: {
  custom: {
    50: '#d2796a',
    500: '#b43d31',
    950: '#000000',
  },
}

SCSS

$custom: #b43d31;
$custom-light: #d2796a;
$custom-dark: #000000;

JSON

{
  "hex": "#b43d31",
  "rgb": {
    "r": 180,
    "g": 61,
    "b": 49
  },
  "hsl": {
    "h": 5.496,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.52818,
    "c": 0.15658,
    "h": 29.1
  },
  "luminance": 0.13263
}

Semantic roles & 50–950 ramp

primary

#B43D31

secondary

#7BBFC6

accent

#D2E047

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B43D31

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

Preview Lab → · Contrast checker → · Palette generator →