#B73A4B#B73A4B

#B73A4B is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.4% C 0.160 H 16.7°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#B73A4B
RGB	rgb(183, 58, 75)
HSL	hsl(352, 52%, 47%)
HSV	hsv(352, 68%, 72%)
CMYK	cmyk(0%, 68.3%, 59%, 28.2%)
CIE-LAB	lab(43.66, 51.29, 18.73)
CIE-LCH	lch(43.66, 54.60, 20.06°)
OKLab	oklab(53.43% 0.1535 0.046)
OKLCH	oklch(53.43% 0.16 16.7)
XYZ	xyz(22.3136, 13.6045, 8.1062)
Luminance	0.1360 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73A4B #3AB7A6

analogous

#B73A8A #B73A4B #B7683A

triadic

#B73A4B #4BB73A #3A4BB7

tetradic

#B73A4B #8AB73A #3AB7A6 #683AB7

square

#B73A4B #8AB73A #3AB7A6 #683AB7

split-complementary

#B73A4B #3AB768 #3A8AB7

monochromatic

#5A1D25 #892B38 #B73A4B #CD6170 #DC909A

Accessibility & contrast

On white

5.64

#B73A4B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B73A4B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73A4B

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73A4B	#FFFFFF	#000000	##FFFFFF
##B73A4B	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A574B

Deuteranopia (green-blind)

#7A7148

Tritanopia (blue-blind)

#C81E41

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73a4b;
/* rgb */ color: rgb(183, 58, 75);
/* oklch */ color: oklch(53.4% 0.160 16.7);

Tailwind

colors: {
  custom: {
    50: '#d3787d',
    500: '#b73a4b',
    950: '#000000',
  },
}

SCSS

$custom: #b73a4b;
$custom-light: #d3787d;
$custom-dark: #000000;

JSON

{
  "hex": "#b73a4b",
  "rgb": {
    "r": 183,
    "g": 58,
    "b": 75
  },
  "hsl": {
    "h": 351.84,
    "s": 51.867,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53428,
    "c": 0.16028,
    "h": 16.7
  },
  "luminance": 0.13601
}

Semantic roles & 50–950 ramp

primary

#B73A4B

secondary

#86C7BE

accent

#DBC84C

background

#FDF7F7

surface

#FBEEEE

border

#D4C9C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B73A4B

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

Preview Lab → · Contrast checker → · Palette generator →