#B7374D#B7374D

#B7374D is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.1% C 0.164 H 14.9°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#B7374D
RGB	rgb(183, 55, 77)
HSL	hsl(350, 54%, 47%)
HSV	hsv(350, 70%, 72%)
CMYK	cmyk(0%, 69.9%, 57.9%, 28.2%)
CIE-LAB	lab(43.27, 52.62, 16.97)
CIE-LCH	lch(43.27, 55.29, 17.87°)
OKLab	oklab(53.15% 0.1581 0.042)
OKLCH	oklch(53.15% 0.164 14.9)
XYZ	xyz(22.2363, 13.3386, 8.4234)
Luminance	0.1333 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7374D #37B7A1

analogous

#B7378D #B7374D #B76137

triadic

#B7374D #4DB737 #374DB7

tetradic

#B7374D #8DB737 #37B7A1 #6137B7

square

#B7374D #8DB737 #37B7A1 #6137B7

split-complementary

#B7374D #37B761 #378DB7

monochromatic

#591B25 #882939 #B7374D #CE5D70 #DC8C9A

Accessibility & contrast

On white

5.73

#B7374D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B7374D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7374D

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7374D	#FFFFFF	#000000	##FFFFFF
##B7374D	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58554D

Deuteranopia (green-blind)

#79704A

Tritanopia (blue-blind)

#C81840

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b7374d;
/* rgb */ color: rgb(183, 55, 77);
/* oklch */ color: oklch(53.1% 0.164 14.9);

Tailwind

colors: {
  custom: {
    50: '#d3777e',
    500: '#b7374d',
    950: '#000000',
  },
}

SCSS

$custom: #b7374d;
$custom-light: #d3777e;
$custom-dark: #000000;

JSON

{
  "hex": "#b7374d",
  "rgb": {
    "r": 183,
    "g": 55,
    "b": 77
  },
  "hsl": {
    "h": 349.688,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.5315,
    "c": 0.1636,
    "h": 14.9
  },
  "luminance": 0.13335
}

Semantic roles & 50–950 ramp

primary

#B7374D

secondary

#83C7BB

accent

#DDC44B

background

#FDF7F7

surface

#FBEEEE

border

#D4C9C9

text

#15090A

muted

#837B7C

Preview Lab

Preview with #B7374D

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

Preview Lab → · Contrast checker → · Palette generator →