#B73B2F#B73B2F

#B73B2F is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.1% C 0.162 H 29.1°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#B73B2F
RGB	rgb(183, 59, 47)
HSL	hsl(5, 59%, 45%)
HSV	hsv(5, 74%, 72%)
CMYK	cmyk(0%, 67.8%, 74.3%, 28.2%)
CIE-LAB	lab(43.37, 49.28, 35.11)
CIE-LCH	lch(43.37, 60.51, 35.47°)
OKLab	oklab(53.06% 0.1416 0.0789)
OKLCH	oklch(53.06% 0.162 29.1)
XYZ	xyz(21.6079, 13.4036, 4.1381)
Luminance	0.1340 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73B2F #2FABB7

analogous

#B72F67 #B73B2F #B77F2F

triadic

#B73B2F #2FB73B #3B2FB7

tetradic

#B73B2F #67B72F #2FABB7 #7F2FB7

square

#B73B2F #67B72F #2FABB7 #7F2FB7

split-complementary

#B73B2F #2FB77F #2F67B7

monochromatic

#561C16 #862B22 #B73B2F #D25C51 #DF8A82

Accessibility & contrast

On white

5.71

#B73B2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B73B2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73B2F

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73B2F	#FFFFFF	#000000	##FFFFFF
##B73B2F	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E552D

Deuteranopia (green-blind)

#7D702B

Tritanopia (blue-blind)

#C91639

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b73b2f;
/* rgb */ color: rgb(183, 59, 47);
/* oklch */ color: oklch(53.1% 0.162 29.1);

Tailwind

colors: {
  custom: {
    50: '#d57868',
    500: '#b73b2f',
    950: '#000000',
  },
}

SCSS

$custom: #b73b2f;
$custom-light: #d57868;
$custom-dark: #000000;

JSON

{
  "hex": "#b73b2f",
  "rgb": {
    "r": 183,
    "g": 59,
    "b": 47
  },
  "hsl": {
    "h": 5.294,
    "s": 59.13,
    "l": 45.098
  },
  "oklch": {
    "l": 0.53064,
    "c": 0.16209,
    "h": 29.1
  },
  "luminance": 0.134
}

Semantic roles & 50–950 ramp

primary

#B73B2F

secondary

#7AC1C8

accent

#D4E245

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73B2F

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

Preview Lab → · Contrast checker → · Palette generator →