#B73428#B73428

#B73428 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.170 H 29.3°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#B73428
RGB	rgb(183, 52, 40)
HSL	hsl(5, 64%, 44%)
HSV	hsv(5, 78%, 72%)
CMYK	cmyk(0%, 71.6%, 78.1%, 28.2%)
CIE-LAB	lab(42.28, 51.76, 37.86)
CIE-LCH	lch(42.28, 64.13, 36.19°)
OKLab	oklab(52.23% 0.148 0.083)
OKLCH	oklch(52.23% 0.17 29.3)
XYZ	xyz(21.1419, 12.6797, 3.3413)
Luminance	0.1268 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73428 #28ABB7

analogous

#B72863 #B73428 #B77B28

triadic

#B73428 #28B734 #3428B7

tetradic

#B73428 #63B728 #28ABB7 #7B28B7

square

#B73428 #63B728 #28ABB7 #7B28B7

split-complementary

#B73428 #28B77B #2863B7

monochromatic

#531712 #85261D #B73428 #D65246 #E18178

Accessibility & contrast

On white

5.94

#B73428 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#B73428 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73428

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73428	#FFFFFF	#000000	##FFFFFF
##B73428	1.00	5.94	3.54	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5225

Deuteranopia (green-blind)

#7B6E23

Tritanopia (blue-blind)

#CA0032

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b73428;
/* rgb */ color: rgb(183, 52, 40);
/* oklch */ color: oklch(52.2% 0.170 29.3);

Tailwind

colors: {
  custom: {
    50: '#d57463',
    500: '#b73428',
    950: '#000000',
  },
}

SCSS

$custom: #b73428;
$custom-light: #d57463;
$custom-dark: #000000;

JSON

{
  "hex": "#b73428",
  "rgb": {
    "r": 183,
    "g": 52,
    "b": 40
  },
  "hsl": {
    "h": 5.035,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.52225,
    "c": 0.16966,
    "h": 29.3
  },
  "luminance": 0.12676
}

Semantic roles & 50–950 ramp

primary

#B73428

secondary

#72C2C9

accent

#D9E741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B73428

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

Preview Lab → · Contrast checker → · Palette generator →