#B73C30#B73C30

#B73C30 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.161 H 29.1°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#B73C30
RGB	rgb(183, 60, 48)
HSL	hsl(5, 58%, 45%)
HSV	hsv(5, 74%, 72%)
CMYK	cmyk(0%, 67.2%, 73.8%, 28.2%)
CIE-LAB	lab(43.53, 48.91, 34.73)
CIE-LCH	lch(43.53, 59.98, 35.38°)
OKLab	oklab(53.19% 0.1407 0.0783)
OKLCH	oklch(53.19% 0.161 29.1)
XYZ	xyz(21.6802, 13.5156, 4.2629)
Luminance	0.1351 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73C30 #30ABB7

analogous

#B73068 #B73C30 #B77F30

triadic

#B73C30 #30B73C #3C30B7

tetradic

#B73C30 #68B730 #30ABB7 #7F30B7

square

#B73C30 #68B730 #30ABB7 #7F30B7

split-complementary

#B73C30 #30B77F #3068B7

monochromatic

#561C17 #872C23 #B73C30 #D25E52 #DE8B83

Accessibility & contrast

On white

5.67

#B73C30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#B73C30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73C30

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73C30	#FFFFFF	#000000	##FFFFFF
##B73C30	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F562E

Deuteranopia (green-blind)

#7D712C

Tritanopia (blue-blind)

#C9183A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b73c30;
/* rgb */ color: rgb(183, 60, 48);
/* oklch */ color: oklch(53.2% 0.161 29.1);

Tailwind

colors: {
  custom: {
    50: '#d57869',
    500: '#b73c30',
    950: '#000000',
  },
}

SCSS

$custom: #b73c30;
$custom-light: #d57869;
$custom-dark: #000000;

JSON

{
  "hex": "#b73c30",
  "rgb": {
    "r": 183,
    "g": 60,
    "b": 48
  },
  "hsl": {
    "h": 5.333,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.53192,
    "c": 0.16096,
    "h": 29.1
  },
  "luminance": 0.13512
}

Semantic roles & 50–950 ramp

primary

#B73C30

secondary

#7BC1C8

accent

#D4E246

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B73C30

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

Preview Lab → · Contrast checker → · Palette generator →