#B73E31#B73E31

#B73E31 is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.4% C 0.159 H 29.4°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#B73E31
RGB	rgb(183, 62, 49)
HSL	hsl(6, 58%, 45%)
HSV	hsv(6, 73%, 72%)
CMYK	cmyk(0%, 66.1%, 73.2%, 28.2%)
CIE-LAB	lab(43.85, 48.11, 34.52)
CIE-LCH	lch(43.85, 59.21, 35.66°)
OKLab	oklab(53.44% 0.1384 0.078)
OKLCH	oklch(53.44% 0.159 29.4)
XYZ	xyz(21.8078, 13.7374, 4.4084)
Luminance	0.1373 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73E31 #31AAB7

analogous

#B73167 #B73E31 #B78131

triadic

#B73E31 #31B73E #3E31B7

tetradic

#B73E31 #67B731 #31AAB7 #8131B7

square

#B73E31 #67B731 #31AAB7 #8131B7

split-complementary

#B73E31 #31B781 #3167B7

monochromatic

#561D17 #872E24 #B73E31 #D16054 #DE8D84

Accessibility & contrast

On white

5.60

#B73E31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#B73E31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73E31

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73E31	#FFFFFF	#000000	##FFFFFF
##B73E31	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60572F

Deuteranopia (green-blind)

#7E712D

Tritanopia (blue-blind)

#C91D3C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b73e31;
/* rgb */ color: rgb(183, 62, 49);
/* oklch */ color: oklch(53.4% 0.159 29.4);

Tailwind

colors: {
  custom: {
    50: '#d47a6a',
    500: '#b73e31',
    950: '#000000',
  },
}

SCSS

$custom: #b73e31;
$custom-light: #d47a6a;
$custom-dark: #000000;

JSON

{
  "hex": "#b73e31",
  "rgb": {
    "r": 183,
    "g": 62,
    "b": 49
  },
  "hsl": {
    "h": 5.821,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.53439,
    "c": 0.15884,
    "h": 29.4
  },
  "luminance": 0.13734
}

Semantic roles & 50–950 ramp

primary

#B73E31

secondary

#7CC0C8

accent

#D2E147

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B73E31

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

Preview Lab → · Contrast checker → · Palette generator →