#B43743#B43743

#B43743 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.4% C 0.161 H 19.3°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B43743
RGB	rgb(180, 55, 67)
HSL	hsl(354, 53%, 46%)
HSV	hsv(354, 69%, 71%)
CMYK	cmyk(0%, 69.4%, 62.8%, 29.4%)
CIE-LAB	lab(42.53, 50.97, 22.06)
CIE-LCH	lch(42.53, 55.54, 23.40°)
OKLab	oklab(52.43% 0.1514 0.0532)
OKLCH	oklch(52.43% 0.161 19.3)
XYZ	xyz(21.2038, 12.8439, 6.6717)
Luminance	0.1284 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43743 #37B4A8

analogous

#B43781 #B43743 #B46937

triadic

#B43743 #43B437 #3743B4

tetradic

#B43743 #81B437 #37B4A8 #6937B4

square

#B43743 #81B437 #37B4A8 #6937B4

split-complementary

#B43743 #37B469 #3781B4

monochromatic

#561A20 #852932 #B43743 #CD5B66 #DB8A92

Accessibility & contrast

On white

5.89

#B43743 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B43743 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43743

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43743	#FFFFFF	#000000	##FFFFFF
##B43743	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585443

Deuteranopia (green-blind)

#786E40

Tritanopia (blue-blind)

#C5163C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b43743;
/* rgb */ color: rgb(180, 55, 67);
/* oklch */ color: oklch(52.4% 0.161 19.3);

Tailwind

colors: {
  custom: {
    50: '#d17677',
    500: '#b43743',
    950: '#000000',
  },
}

SCSS

$custom: #b43743;
$custom-light: #d17677;
$custom-dark: #000000;

JSON

{
  "hex": "#b43743",
  "rgb": {
    "r": 180,
    "g": 55,
    "b": 67
  },
  "hsl": {
    "h": 354.24,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52433,
    "c": 0.1605,
    "h": 19.3
  },
  "luminance": 0.12841
}

Semantic roles & 50–950 ramp

primary

#B43743

secondary

#81C6BF

accent

#DDCF4B

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B43743

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

Preview Lab → · Contrast checker → · Palette generator →