#B73039#B73039

#B73039 is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.1% C 0.171 H 22.1°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#B73039
RGB	rgb(183, 48, 57)
HSL	hsl(356, 58%, 45%)
HSV	hsv(356, 74%, 72%)
CMYK	cmyk(0%, 73.8%, 68.9%, 28.2%)
CIE-LAB	lab(41.97, 53.96, 27.59)
CIE-LCH	lch(41.97, 60.61, 27.08°)
OKLab	oklab(52.07% 0.1585 0.0643)
OKLCH	oklch(52.07% 0.171 22.1)
XYZ	xyz(21.3263, 12.4798, 5.1560)
Luminance	0.1248 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73039 #30B7AE

analogous

#B7307C #B73039 #B76A30

triadic

#B73039 #39B730 #3039B7

tetradic

#B73039 #7CB730 #30B7AE #6A30B7

square

#B73039 #7CB730 #30B7AE #6A30B7

split-complementary

#B73039 #30B76A #307CB7

monochromatic

#56171B #87232A #B73039 #D2525B #DE8389

Accessibility & contrast

On white

6.01

#B73039 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B73039 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73039

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73039	#FFFFFF	#000000	##FFFFFF
##B73039	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575138

Deuteranopia (green-blind)

#796E35

Tritanopia (blue-blind)

#C90035

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b73039;
/* rgb */ color: rgb(183, 48, 57);
/* oklch */ color: oklch(52.1% 0.171 22.1);

Tailwind

colors: {
  custom: {
    50: '#d4736f',
    500: '#b73039',
    950: '#000000',
  },
}

SCSS

$custom: #b73039;
$custom-light: #d4736f;
$custom-dark: #000000;

JSON

{
  "hex": "#b73039",
  "rgb": {
    "r": 183,
    "g": 48,
    "b": 57
  },
  "hsl": {
    "h": 356,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52065,
    "c": 0.17107,
    "h": 22.1
  },
  "luminance": 0.12477
}

Semantic roles & 50–950 ramp

primary

#B73039

secondary

#7BC8C3

accent

#E2D746

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B73039

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

Preview Lab → · Contrast checker → · Palette generator →