#B73838#B73838

#B73838 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.9% C 0.164 H 24.7°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B73838
RGB	rgb(183, 56, 56)
HSL	hsl(0, 53%, 47%)
HSV	hsv(0, 69%, 72%)
CMYK	cmyk(0%, 69.4%, 69.4%, 28.2%)
CIE-LAB	lab(43.04, 50.92, 29.49)
CIE-LCH	lch(43.04, 58.84, 30.08°)
OKLab	oklab(52.86% 0.1487 0.0683)
OKLCH	oklch(52.86% 0.164 24.7)
XYZ	xyz(21.6588, 13.1843, 5.1450)
Luminance	0.1318 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73838 #38B7B7

analogous

#B73878 #B73838 #B77838

triadic

#B73838 #38B738 #3838B7

tetradic

#B73838 #78B738 #38B7B7 #7838B7

square

#B73838 #78B738 #38B7B7 #7838B7

split-complementary

#B73838 #38B778 #3878B7

monochromatic

#591B1B #882A2A #B73838 #CE5E5E #DC8D8D

Accessibility & contrast

On white

5.78

#B73838 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B73838 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73838

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73838	#FFFFFF	#000000	##FFFFFF
##B73838	1.00	5.78	3.64	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5437

Deuteranopia (green-blind)

#7B7034

Tritanopia (blue-blind)

#C91139

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73838;
/* rgb */ color: rgb(183, 56, 56);
/* oklch */ color: oklch(52.9% 0.164 24.7);

Tailwind

colors: {
  custom: {
    50: '#d4776f',
    500: '#b73838',
    950: '#000000',
  },
}

SCSS

$custom: #b73838;
$custom-light: #d4776f;
$custom-dark: #000000;

JSON

{
  "hex": "#b73838",
  "rgb": {
    "r": 183,
    "g": 56,
    "b": 56
  },
  "hsl": {
    "h": 0,
    "s": 53.138,
    "l": 46.863
  },
  "oklch": {
    "l": 0.52859,
    "c": 0.16362,
    "h": 24.7
  },
  "luminance": 0.13181
}

Semantic roles & 50–950 ramp

primary

#B73838

secondary

#84C7C7

accent

#DDDD4B

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B73838

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

Preview Lab → · Contrast checker → · Palette generator →