#B4304D#B4304D

#B4304D is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.168 H 12.7°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#B4304D
RGB	rgb(180, 48, 77)
HSL	hsl(347, 58%, 45%)
HSV	hsv(347, 73%, 71%)
CMYK	cmyk(0%, 73.3%, 57.2%, 29.4%)
CIE-LAB	lab(41.78, 54.29, 14.86)
CIE-LCH	lch(41.78, 56.29, 15.30°)
OKLab	oklab(51.94% 0.1638 0.037)
OKLCH	oklch(51.94% 0.168 12.7)
XYZ	xyz(21.2209, 12.3560, 8.2873)
Luminance	0.1235 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4304D #30B497

analogous

#B4308F #B4304D #B45530

triadic

#B4304D #4DB430 #304DB4

tetradic

#B4304D #8FB430 #30B497 #5530B4

square

#B4304D #8FB430 #30B497 #5530B4

split-complementary

#B4304D #30B455 #308FB4

monochromatic

#531624 #842338 #B4304D #D1516D #DD8195

Accessibility & contrast

On white

6.05

#B4304D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B4304D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4304D

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4304D	#FFFFFF	#000000	##FFFFFF
##B4304D	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52514D

Deuteranopia (green-blind)

#746C4A

Tritanopia (blue-blind)

#C5093C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b4304d;
/* rgb */ color: rgb(180, 48, 77);
/* oklch */ color: oklch(51.9% 0.168 12.7);

Tailwind

colors: {
  custom: {
    50: '#d1737e',
    500: '#b4304d',
    950: '#000000',
  },
}

SCSS

$custom: #b4304d;
$custom-light: #d1737e;
$custom-dark: #000000;

JSON

{
  "hex": "#b4304d",
  "rgb": {
    "r": 180,
    "g": 48,
    "b": 77
  },
  "hsl": {
    "h": 346.818,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.5194,
    "c": 0.16796,
    "h": 12.7
  },
  "luminance": 0.12353
}

Semantic roles & 50–950 ramp

primary

#B4304D

secondary

#79C6B6

accent

#E1BF47

background

#FDF7F7

surface

#FBEDEE

border

#D4C8C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B4304D

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

Preview Lab → · Contrast checker → · Palette generator →