#B72F3A#B72F3A

#B72F3A is a mid, vivid red. Relative luminance 0.124; OKLCH L 52.0% C 0.172 H 21.4°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#B72F3A
RGB	rgb(183, 47, 58)
HSL	hsl(355, 59%, 45%)
HSV	hsv(355, 74%, 72%)
CMYK	cmyk(0%, 74.3%, 68.3%, 28.2%)
CIE-LAB	lab(41.86, 54.36, 26.85)
CIE-LCH	lch(41.86, 60.63, 26.28°)
OKLab	oklab(51.99% 0.16 0.0628)
OKLCH	oklch(51.99% 0.172 21.4)
XYZ	xyz(21.3110, 12.4090, 5.2752)
Luminance	0.1241 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B72F3A #2FB7AC

analogous

#B72F7E #B72F3A #B7682F

triadic

#B72F3A #3AB72F #2F3AB7

tetradic

#B72F3A #7EB72F #2FB7AC #682FB7

square

#B72F3A #7EB72F #2FB7AC #682FB7

split-complementary

#B72F3A #2FB768 #2F7EB7

monochromatic

#56161B #86222B #B72F3A #D2515B #DF8289

Accessibility & contrast

On white

6.03

#B72F3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B72F3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B72F3A

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B72F3A	#FFFFFF	#000000	##FFFFFF
##B72F3A	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565039

Deuteranopia (green-blind)

#786D36

Tritanopia (blue-blind)

#C90034

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b72f3a;
/* rgb */ color: rgb(183, 47, 58);
/* oklch */ color: oklch(52.0% 0.172 21.4);

Tailwind

colors: {
  custom: {
    50: '#d47270',
    500: '#b72f3a',
    950: '#000000',
  },
}

SCSS

$custom: #b72f3a;
$custom-light: #d47270;
$custom-dark: #000000;

JSON

{
  "hex": "#b72f3a",
  "rgb": {
    "r": 183,
    "g": 47,
    "b": 58
  },
  "hsl": {
    "h": 355.147,
    "s": 59.13,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51988,
    "c": 0.1719,
    "h": 21.4
  },
  "luminance": 0.12406
}

Semantic roles & 50–950 ramp

primary

#B72F3A

secondary

#7AC8C2

accent

#E2D645

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B72F3A

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

Preview Lab → · Contrast checker → · Palette generator →