#B73A34#B73A34

#B73A34 is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.0% C 0.162 H 26.9°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#B73A34
RGB	rgb(183, 58, 52)
HSL	hsl(3, 56%, 46%)
HSV	hsv(3, 72%, 72%)
CMYK	cmyk(0%, 68.3%, 71.6%, 28.2%)
CIE-LAB	lab(43.28, 49.91, 32.13)
CIE-LCH	lch(43.28, 59.36, 32.77°)
OKLab	oklab(53.02% 0.1447 0.0734)
OKLCH	oklch(53.02% 0.162 26.9)
XYZ	xyz(21.6637, 13.3445, 4.6832)
Luminance	0.1334 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73A34 #34B1B7

analogous

#B7346F #B73A34 #B77B34

triadic

#B73A34 #34B73A #3A34B7

tetradic

#B73A34 #6FB734 #34B1B7 #7B34B7

square

#B73A34 #6FB734 #34B1B7 #7B34B7

split-complementary

#B73A34 #34B77B #346FB7

monochromatic

#581C19 #872B26 #B73A34 #D05E59 #DD8C88

Accessibility & contrast

On white

5.72

#B73A34 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B73A34 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73A34

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73A34	#FFFFFF	#000000	##FFFFFF
##B73A34	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5532

Deuteranopia (green-blind)

#7C7030

Tritanopia (blue-blind)

#C9153A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73a34;
/* rgb */ color: rgb(183, 58, 52);
/* oklch */ color: oklch(53.0% 0.162 26.9);

Tailwind

colors: {
  custom: {
    50: '#d4786c',
    500: '#b73a34',
    950: '#000000',
  },
}

SCSS

$custom: #b73a34;
$custom-light: #d4786c;
$custom-dark: #000000;

JSON

{
  "hex": "#b73a34",
  "rgb": {
    "r": 183,
    "g": 58,
    "b": 52
  },
  "hsl": {
    "h": 2.748,
    "s": 55.745,
    "l": 46.078
  },
  "oklch": {
    "l": 0.53019,
    "c": 0.16223,
    "h": 26.9
  },
  "luminance": 0.13341
}

Semantic roles & 50–950 ramp

primary

#B73A34

secondary

#80C4C7

accent

#D8DF49

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B73A34

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

Preview Lab → · Contrast checker → · Palette generator →