#B73439#B73439

#B73439 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.5% C 0.167 H 23.1°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B73439
RGB	rgb(183, 52, 57)
HSL	hsl(358, 56%, 46%)
HSV	hsv(358, 72%, 72%)
CMYK	cmyk(0%, 71.6%, 68.9%, 28.2%)
CIE-LAB	lab(42.49, 52.51, 28.23)
CIE-LCH	lch(42.49, 59.62, 28.26°)
OKLab	oklab(52.46% 0.1539 0.0657)
OKLCH	oklch(52.46% 0.167 23.1)
XYZ	xyz(21.4973, 12.8219, 5.2130)
Luminance	0.1282 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73439 #34B7B2

analogous

#B7347A #B73439 #B77034

triadic

#B73439 #39B734 #3439B7

tetradic

#B73439 #7AB734 #34B7B2 #7034B7

square

#B73439 #7AB734 #34B7B2 #7034B7

split-complementary

#B73439 #34B770 #347AB7

monochromatic

#58191B #87262A #B73439 #D0595D #DD888B

Accessibility & contrast

On white

5.89

#B73439 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B73439 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73439

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73439	#FFFFFF	#000000	##FFFFFF
##B73439	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595238

Deuteranopia (green-blind)

#7A6F35

Tritanopia (blue-blind)

#C90337

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b73439;
/* rgb */ color: rgb(183, 52, 57);
/* oklch */ color: oklch(52.5% 0.167 23.1);

Tailwind

colors: {
  custom: {
    50: '#d4756f',
    500: '#b73439',
    950: '#000000',
  },
}

SCSS

$custom: #b73439;
$custom-light: #d4756f;
$custom-dark: #000000;

JSON

{
  "hex": "#b73439",
  "rgb": {
    "r": 183,
    "g": 52,
    "b": 57
  },
  "hsl": {
    "h": 357.71,
    "s": 55.745,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52456,
    "c": 0.16735,
    "h": 23.1
  },
  "luminance": 0.12819
}

Semantic roles & 50–950 ramp

primary

#B73439

secondary

#80C7C4

accent

#DFD949

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B73439

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

Preview Lab → · Contrast checker → · Palette generator →