#B74C37#B74C37

#B74C37 is a mid, vivid red. Relative luminance 0.155; OKLCH L 55.3% C 0.144 H 32.9°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#B74C37
RGB	rgb(183, 76, 55)
HSL	hsl(10, 54%, 47%)
HSV	hsv(10, 70%, 72%)
CMYK	cmyk(0%, 58.5%, 69.9%, 28.2%)
CIE-LAB	lab(46.33, 42.02, 33.95)
CIE-LCH	lch(46.33, 54.03, 38.94°)
OKLab	oklab(55.33% 0.1206 0.078)
OKLCH	oklch(55.33% 0.144 32.9)
XYZ	xyz(22.8047, 15.5150, 5.4075)
Luminance	0.1551 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B74C37 #37A2B7

analogous

#B73762 #B74C37 #B78C37

triadic

#B74C37 #37B74C #4C37B7

tetradic

#B74C37 #62B737 #37A2B7 #8C37B7

square

#B74C37 #62B737 #37A2B7 #8C37B7

split-complementary

#B74C37 #37B78C #3762B7

monochromatic

#59251B #883829 #B74C37 #CE705D #DC998C

Accessibility & contrast

On white

5.12

#B74C37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#B74C37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B74C37

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B74C37	#FFFFFF	#000000	##FFFFFF
##B74C37	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#695F34

Deuteranopia (green-blind)

#837734

Tritanopia (blue-blind)

#C93547

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #b74c37;
/* rgb */ color: rgb(183, 76, 55);
/* oklch */ color: oklch(55.3% 0.144 32.9);

Tailwind

colors: {
  custom: {
    50: '#d3826e',
    500: '#b74c37',
    950: '#000000',
  },
}

SCSS

$custom: #b74c37;
$custom-light: #d3826e;
$custom-dark: #000000;

JSON

{
  "hex": "#b74c37",
  "rgb": {
    "r": 183,
    "g": 76,
    "b": 55
  },
  "hsl": {
    "h": 9.844,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.5533,
    "c": 0.14358,
    "h": 32.9
  },
  "luminance": 0.15512
}

Semantic roles & 50–950 ramp

primary

#B74C37

secondary

#83BCC7

accent

#C5DD4B

background

#FDF8F6

surface

#FBEFEC

border

#D4CAC7

text

#150B07

muted

#837C7A

Preview Lab

Preview with #B74C37

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

Preview Lab → · Contrast checker → · Palette generator →