#B74B37#B74B37

#B74B37 is a mid, vivid red. Relative luminance 0.154; OKLCH L 55.2% C 0.145 H 32.4°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#B74B37
RGB	rgb(183, 75, 55)
HSL	hsl(9, 54%, 47%)
HSV	hsv(9, 70%, 72%)
CMYK	cmyk(0%, 59%, 69.9%, 28.2%)
CIE-LAB	lab(46.15, 42.50, 33.74)
CIE-LCH	lch(46.15, 54.27, 38.44°)
OKLab	oklab(55.19% 0.1221 0.0775)
OKLCH	oklch(55.19% 0.145 32.4)
XYZ	xyz(22.7364, 15.3783, 5.3847)
Luminance	0.1537 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B74B37 #37A3B7

analogous

#B73763 #B74B37 #B78B37

triadic

#B74B37 #37B74B #4B37B7

tetradic

#B74B37 #63B737 #37A3B7 #8B37B7

square

#B74B37 #63B737 #37A3B7 #8B37B7

split-complementary

#B74B37 #37B78B #3763B7

monochromatic

#59241B #883829 #B74B37 #CE6F5D #DC998C

Accessibility & contrast

On white

5.15

#B74B37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#B74B37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B74B37

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B74B37	#FFFFFF	#000000	##FFFFFF
##B74B37	1.00	5.15	4.07	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685F34

Deuteranopia (green-blind)

#837634

Tritanopia (blue-blind)

#C93447

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #b74b37;
/* rgb */ color: rgb(183, 75, 55);
/* oklch */ color: oklch(55.2% 0.145 32.4);

Tailwind

colors: {
  custom: {
    50: '#d3816e',
    500: '#b74b37',
    950: '#000000',
  },
}

SCSS

$custom: #b74b37;
$custom-light: #d3816e;
$custom-dark: #000000;

JSON

{
  "hex": "#b74b37",
  "rgb": {
    "r": 183,
    "g": 75,
    "b": 55
  },
  "hsl": {
    "h": 9.375,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.55191,
    "c": 0.14459,
    "h": 32.4
  },
  "luminance": 0.15375
}

Semantic roles & 50–950 ramp

primary

#B74B37

secondary

#83BCC7

accent

#C6DD4B

background

#FDF8F6

surface

#FBEFEC

border

#D4CAC7

text

#150B07

muted

#837C7A

Preview Lab

Preview with #B74B37

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

Preview Lab → · Contrast checker → · Palette generator →