#B73330#B73330

#B73330 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.2% C 0.169 H 26.3°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#B73330
RGB	rgb(183, 51, 48)
HSL	hsl(1, 58%, 45%)
HSV	hsv(1, 74%, 72%)
CMYK	cmyk(0%, 72.1%, 73.8%, 28.2%)
CIE-LAB	lab(42.23, 52.45, 33.26)
CIE-LCH	lch(42.23, 62.11, 32.38°)
OKLab	oklab(52.22% 0.1518 0.0751)
OKLCH	oklch(52.22% 0.169 26.3)
XYZ	xyz(21.2482, 12.6516, 4.1189)
Luminance	0.1265 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73330 #30B4B7

analogous

#B73071 #B73330 #B77630

triadic

#B73330 #30B733 #3330B7

tetradic

#B73330 #71B730 #30B4B7 #7630B7

square

#B73330 #71B730 #30B4B7 #7630B7

split-complementary

#B73330 #30B776 #3071B7

monochromatic

#561817 #872523 #B73330 #D25552 #DE8583

Accessibility & contrast

On white

5.95

#B73330 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B73330 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73330

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73330	#FFFFFF	#000000	##FFFFFF
##B73330	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59512E

Deuteranopia (green-blind)

#7A6E2B

Tritanopia (blue-blind)

#C90034

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b73330;
/* rgb */ color: rgb(183, 51, 48);
/* oklch */ color: oklch(52.2% 0.169 26.3);

Tailwind

colors: {
  custom: {
    50: '#d57469',
    500: '#b73330',
    950: '#000000',
  },
}

SCSS

$custom: #b73330;
$custom-light: #d57469;
$custom-dark: #000000;

JSON

{
  "hex": "#b73330",
  "rgb": {
    "r": 183,
    "g": 51,
    "b": 48
  },
  "hsl": {
    "h": 1.333,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52222,
    "c": 0.16936,
    "h": 26.3
  },
  "luminance": 0.12648
}

Semantic roles & 50–950 ramp

primary

#B73330

secondary

#7BC6C8

accent

#DEE246

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73330

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

Preview Lab → · Contrast checker → · Palette generator →