#B73530#B73530

#B73530 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.4% C 0.168 H 26.9°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B73530
RGB	rgb(183, 53, 48)
HSL	hsl(2, 58%, 45%)
HSV	hsv(2, 74%, 72%)
CMYK	cmyk(0%, 71%, 73.8%, 28.2%)
CIE-LAB	lab(42.51, 51.70, 33.57)
CIE-LCH	lch(42.51, 61.64, 33.00°)
OKLab	oklab(52.43% 0.1494 0.0758)
OKLCH	oklch(52.43% 0.168 26.9)
XYZ	xyz(21.3374, 12.8301, 4.1487)
Luminance	0.1283 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73530 #30B2B7

analogous

#B7306F #B73530 #B77830

triadic

#B73530 #30B735 #3530B7

tetradic

#B73530 #6FB730 #30B2B7 #7830B7

square

#B73530 #6FB730 #30B2B7 #7830B7

split-complementary

#B73530 #30B778 #306FB7

monochromatic

#561917 #872723 #B73530 #D25752 #DE8683

Accessibility & contrast

On white

5.89

#B73530 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B73530 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73530

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73530	#FFFFFF	#000000	##FFFFFF
##B73530	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)

#5B522E

Deuteranopia (green-blind)

#7B6F2B

Tritanopia (blue-blind)

#C90135

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b73530;
/* rgb */ color: rgb(183, 53, 48);
/* oklch */ color: oklch(52.4% 0.168 26.9);

Tailwind

colors: {
  custom: {
    50: '#d57569',
    500: '#b73530',
    950: '#000000',
  },
}

SCSS

$custom: #b73530;
$custom-light: #d57569;
$custom-dark: #000000;

JSON

{
  "hex": "#b73530",
  "rgb": {
    "r": 183,
    "g": 53,
    "b": 48
  },
  "hsl": {
    "h": 2.222,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52425,
    "c": 0.16754,
    "h": 26.9
  },
  "luminance": 0.12827
}

Semantic roles & 50–950 ramp

primary

#B73530

secondary

#7BC5C8

accent

#DCE246

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73530

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

Preview Lab → · Contrast checker → · Palette generator →