#B73030#B73030

#B73030 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.172 H 25.5°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#B73030
RGB	rgb(183, 48, 48)
HSL	hsl(0, 58%, 45%)
HSV	hsv(0, 74%, 72%)
CMYK	cmyk(0%, 73.8%, 73.8%, 28.2%)
CIE-LAB	lab(41.84, 53.54, 32.82)
CIE-LCH	lch(41.84, 62.79, 31.51°)
OKLab	oklab(51.93% 0.1552 0.0741)
OKLCH	oklch(51.93% 0.172 25.5)
XYZ	xyz(21.1213, 12.3978, 4.0766)
Luminance	0.1240 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73030 #30B7B7

analogous

#B73073 #B73030 #B77330

triadic

#B73030 #30B730 #3030B7

tetradic

#B73030 #73B730 #30B7B7 #7330B7

square

#B73030 #73B730 #30B7B7 #7330B7

split-complementary

#B73030 #30B773 #3073B7

monochromatic

#561717 #872323 #B73030 #D25252 #DE8383

Accessibility & contrast

On white

6.04

#B73030 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B73030 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73030

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73030	#FFFFFF	#000000	##FFFFFF
##B73030	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58502E

Deuteranopia (green-blind)

#796D2B

Tritanopia (blue-blind)

#C90032

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b73030;
/* rgb */ color: rgb(183, 48, 48);
/* oklch */ color: oklch(51.9% 0.172 25.5);

Tailwind

colors: {
  custom: {
    50: '#d57368',
    500: '#b73030',
    950: '#000000',
  },
}

SCSS

$custom: #b73030;
$custom-light: #d57368;
$custom-dark: #000000;

JSON

{
  "hex": "#b73030",
  "rgb": {
    "r": 183,
    "g": 48,
    "b": 48
  },
  "hsl": {
    "h": 0,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.51929,
    "c": 0.17201,
    "h": 25.5
  },
  "luminance": 0.12395
}

Semantic roles & 50–950 ramp

primary

#B73030

secondary

#7BC8C8

accent

#E2E246

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73030

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

Preview Lab → · Contrast checker → · Palette generator →