#B43538#B43538

#B43538 is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.0% C 0.163 H 23.7°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#B43538
RGB	rgb(180, 53, 56)
HSL	hsl(359, 55%, 46%)
HSV	hsv(359, 71%, 71%)
CMYK	cmyk(0%, 70.6%, 68.9%, 29.4%)
CIE-LAB	lab(42.06, 51.11, 28.17)
CIE-LCH	lch(42.06, 58.36, 28.86°)
OKLab	oklab(52.02% 0.1496 0.0656)
OKLCH	oklch(52.02% 0.163 23.7)
XYZ	xyz(20.8115, 12.5381, 5.0649)
Luminance	0.1253 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43538 #35B4B1

analogous

#B43577 #B43538 #B47235

triadic

#B43538 #38B435 #3538B4

tetradic

#B43538 #77B435 #35B4B1 #7235B4

square

#B43538 #77B435 #35B4B1 #7235B4

split-complementary

#B43538 #35B472 #3577B4

monochromatic

#55191B #852729 #B43538 #CE585B #DC888A

Accessibility & contrast

On white

5.99

#B43538 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B43538 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43538

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43538	#FFFFFF	#000000	##FFFFFF
##B43538	1.00	5.99	3.51	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595237

Deuteranopia (green-blind)

#786D34

Tritanopia (blue-blind)

#C60A37

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b43538;
/* rgb */ color: rgb(180, 53, 56);
/* oklch */ color: oklch(52.0% 0.163 23.7);

Tailwind

colors: {
  custom: {
    50: '#d2756e',
    500: '#b43538',
    950: '#000000',
  },
}

SCSS

$custom: #b43538;
$custom-light: #d2756e;
$custom-dark: #000000;

JSON

{
  "hex": "#b43538",
  "rgb": {
    "r": 180,
    "g": 53,
    "b": 56
  },
  "hsl": {
    "h": 358.583,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52024,
    "c": 0.16338,
    "h": 23.7
  },
  "luminance": 0.12535
}

Semantic roles & 50–950 ramp

primary

#B43538

secondary

#7FC6C4

accent

#DEDA4A

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B43538

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

Preview Lab → · Contrast checker → · Palette generator →