#B73628#B73628

#B73628 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.4% C 0.168 H 29.9°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#B73628
RGB	rgb(183, 54, 40)
HSL	hsl(6, 64%, 44%)
HSV	hsv(6, 78%, 72%)
CMYK	cmyk(0%, 70.5%, 78.1%, 28.2%)
CIE-LAB	lab(42.55, 51.00, 38.15)
CIE-LCH	lch(42.55, 63.69, 36.80°)
OKLab	oklab(52.43% 0.1456 0.0837)
OKLCH	oklch(52.43% 0.168 29.9)
XYZ	xyz(21.2331, 12.8620, 3.3717)
Luminance	0.1286 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73628 #28A9B7

analogous

#B72861 #B73628 #B77D28

triadic

#B73628 #28B736 #3628B7

tetradic

#B73628 #61B728 #28A9B7 #7D28B7

square

#B73628 #61B728 #28A9B7 #7D28B7

split-complementary

#B73628 #28B77D #2861B7

monochromatic

#531812 #85271D #B73628 #D65446 #E18278

Accessibility & contrast

On white

5.88

#B73628 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B73628 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73628

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73628	#FFFFFF	#000000	##FFFFFF
##B73628	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5225

Deuteranopia (green-blind)

#7C6F23

Tritanopia (blue-blind)

#CA0134

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b73628;
/* rgb */ color: rgb(183, 54, 40);
/* oklch */ color: oklch(52.4% 0.168 29.9);

Tailwind

colors: {
  custom: {
    50: '#d57563',
    500: '#b73628',
    950: '#000000',
  },
}

SCSS

$custom: #b73628;
$custom-light: #d57563;
$custom-dark: #000000;

JSON

{
  "hex": "#b73628",
  "rgb": {
    "r": 183,
    "g": 54,
    "b": 40
  },
  "hsl": {
    "h": 5.874,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.52432,
    "c": 0.16789,
    "h": 29.9
  },
  "luminance": 0.12859
}

Semantic roles & 50–950 ramp

primary

#B73628

secondary

#72C1C9

accent

#D7E741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B73628

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

Preview Lab → · Contrast checker → · Palette generator →