#B74437#B74437

#B74437 is a mid, vivid red. Relative luminance 0.145; OKLCH L 54.3% C 0.152 H 29.3°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#B74437
RGB	rgb(183, 68, 55)
HSL	hsl(6, 54%, 47%)
HSV	hsv(6, 70%, 72%)
CMYK	cmyk(0%, 62.8%, 69.9%, 28.2%)
CIE-LAB	lab(44.91, 45.77, 32.30)
CIE-LCH	lch(44.91, 56.02, 35.21°)
OKLab	oklab(54.26% 0.1322 0.0744)
OKLCH	oklch(54.26% 0.152 29.3)
XYZ	xyz(22.2874, 14.4804, 5.2351)
Luminance	0.1448 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B74437 #37AAB7

analogous

#B7376A #B74437 #B78437

triadic

#B74437 #37B744 #4437B7

tetradic

#B74437 #6AB737 #37AAB7 #8437B7

square

#B74437 #6AB737 #37AAB7 #8437B7

split-complementary

#B74437 #37B784 #376AB7

monochromatic

#59211B #883329 #B74437 #CE685D #DC948C

Accessibility & contrast

On white

5.39

#B74437 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#B74437 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B74437

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B74437	#FFFFFF	#000000	##FFFFFF
##B74437	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635B35

Deuteranopia (green-blind)

#807434

Tritanopia (blue-blind)

#C92942

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #b74437;
/* rgb */ color: rgb(183, 68, 55);
/* oklch */ color: oklch(54.3% 0.152 29.3);

Tailwind

colors: {
  custom: {
    50: '#d47d6e',
    500: '#b74437',
    950: '#000000',
  },
}

SCSS

$custom: #b74437;
$custom-light: #d47d6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b74437",
  "rgb": {
    "r": 183,
    "g": 68,
    "b": 55
  },
  "hsl": {
    "h": 6.094,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.54261,
    "c": 0.15171,
    "h": 29.3
  },
  "luminance": 0.14477
}

Semantic roles & 50–950 ramp

primary

#B74437

secondary

#83C0C7

accent

#CEDD4B

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B74437

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

Preview Lab → · Contrast checker → · Palette generator →