#B4374F#B4374F

#B4374F is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.7% C 0.161 H 13.5°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#B4374F
RGB	rgb(180, 55, 79)
HSL	hsl(348, 53%, 46%)
HSV	hsv(348, 69%, 71%)
CMYK	cmyk(0%, 69.4%, 56.1%, 29.4%)
CIE-LAB	lab(42.77, 51.82, 14.96)
CIE-LCH	lch(42.77, 53.94, 16.10°)
OKLab	oklab(52.69% 0.1562 0.0374)
OKLCH	oklch(52.69% 0.161 13.5)
XYZ	xyz(21.6019, 13.0031, 8.7680)
Luminance	0.1300 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4374F #37B49C

analogous

#B4378D #B4374F #B45D37

triadic

#B4374F #4FB437 #374FB4

tetradic

#B4374F #8DB437 #37B49C #5D37B4

square

#B4374F #8DB437 #37B49C #5D37B4

split-complementary

#B4374F #37B45D #378DB4

monochromatic

#561A26 #85293A #B4374F #CD5B71 #DB8A9A

Accessibility & contrast

On white

5.83

#B4374F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B4374F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4374F

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4374F	#FFFFFF	#000000	##FFFFFF
##B4374F	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56554F

Deuteranopia (green-blind)

#766E4C

Tritanopia (blue-blind)

#C51C41

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b4374f;
/* rgb */ color: rgb(180, 55, 79);
/* oklch */ color: oklch(52.7% 0.161 13.5);

Tailwind

colors: {
  custom: {
    50: '#d17680',
    500: '#b4374f',
    950: '#000000',
  },
}

SCSS

$custom: #b4374f;
$custom-light: #d17680;
$custom-dark: #000000;

JSON

{
  "hex": "#b4374f",
  "rgb": {
    "r": 180,
    "g": 55,
    "b": 79
  },
  "hsl": {
    "h": 348.48,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.5269,
    "c": 0.16063,
    "h": 13.5
  },
  "luminance": 0.13
}

Semantic roles & 50–950 ramp

primary

#B4374F

secondary

#81C6B8

accent

#DDC14B

background

#FDF7F7

surface

#FBEDEE

border

#D4C8C9

text

#15090A

muted

#837B7C

Preview Lab

Preview with #B4374F

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

Preview Lab → · Contrast checker → · Palette generator →