#B73143#B73143

#B73143 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.3% C 0.170 H 18.0°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#B73143
RGB	rgb(183, 49, 67)
HSL	hsl(352, 58%, 45%)
HSV	hsv(352, 73%, 72%)
CMYK	cmyk(0%, 73.2%, 63.4%, 28.2%)
CIE-LAB	lab(42.27, 54.18, 21.83)
CIE-LCH	lch(42.27, 58.41, 21.95°)
OKLab	oklab(52.34% 0.1613 0.0526)
OKLCH	oklch(52.34% 0.17 18)
XYZ	xyz(21.6421, 12.6723, 6.6155)
Luminance	0.1267 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73143 #31B7A5

analogous

#B73186 #B73143 #B76231

triadic

#B73143 #43B731 #3143B7

tetradic

#B73143 #86B731 #31B7A5 #6231B7

square

#B73143 #86B731 #31B7A5 #6231B7

split-complementary

#B73143 #31B762 #3186B7

monochromatic

#561720 #872431 #B73143 #D15465 #DE8490

Accessibility & contrast

On white

5.94

#B73143 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B73143 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73143

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73143	#FFFFFF	#000000	##FFFFFF
##B73143	1.00	5.94	3.53	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565243

Deuteranopia (green-blind)

#786E3F

Tritanopia (blue-blind)

#C90039

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b73143;
/* rgb */ color: rgb(183, 49, 67);
/* oklch */ color: oklch(52.3% 0.170 18.0);

Tailwind

colors: {
  custom: {
    50: '#d47377',
    500: '#b73143',
    950: '#000000',
  },
}

SCSS

$custom: #b73143;
$custom-light: #d47377;
$custom-dark: #000000;

JSON

{
  "hex": "#b73143",
  "rgb": {
    "r": 183,
    "g": 49,
    "b": 67
  },
  "hsl": {
    "h": 351.94,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.5234,
    "c": 0.16963,
    "h": 18
  },
  "luminance": 0.12669
}

Semantic roles & 50–950 ramp

primary

#B73143

secondary

#7CC8BD

accent

#E1CC47

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #B73143

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

Preview Lab → · Contrast checker → · Palette generator →