#B4304A#B4304A

#B4304A is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.9% C 0.168 H 14.2°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#B4304A
RGB	rgb(180, 48, 74)
HSL	hsl(348, 58%, 45%)
HSV	hsv(348, 73%, 71%)
CMYK	cmyk(0%, 73.3%, 58.9%, 29.4%)
CIE-LAB	lab(41.71, 54.08, 16.65)
CIE-LCH	lch(41.71, 56.58, 17.11°)
OKLab	oklab(51.87% 0.1626 0.0411)
OKLCH	oklch(51.87% 0.168 14.2)
XYZ	xyz(21.1174, 12.3146, 7.7422)
Luminance	0.1231 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4304A #30B49A

analogous

#B4308C #B4304A #B45830

triadic

#B4304A #4AB430 #304AB4

tetradic

#B4304A #8CB430 #30B49A #5830B4

square

#B4304A #8CB430 #30B49A #5830B4

split-complementary

#B4304A #30B458 #308CB4

monochromatic

#531622 #842336 #B4304A #D1516A #DD8193

Accessibility & contrast

On white

6.07

#B4304A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B4304A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4304A

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4304A	#FFFFFF	#000000	##FFFFFF
##B4304A	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#53514A

Deuteranopia (green-blind)

#756C47

Tritanopia (blue-blind)

#C5063B

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b4304a;
/* rgb */ color: rgb(180, 48, 74);
/* oklch */ color: oklch(51.9% 0.168 14.2);

Tailwind

colors: {
  custom: {
    50: '#d1737c',
    500: '#b4304a',
    950: '#000000',
  },
}

SCSS

$custom: #b4304a;
$custom-light: #d1737c;
$custom-dark: #000000;

JSON

{
  "hex": "#b4304a",
  "rgb": {
    "r": 180,
    "g": 48,
    "b": 74
  },
  "hsl": {
    "h": 348.182,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51871,
    "c": 0.16776,
    "h": 14.2
  },
  "luminance": 0.12312
}

Semantic roles & 50–950 ramp

primary

#B4304A

secondary

#79C6B7

accent

#E1C347

background

#FDF7F7

surface

#FBEDEE

border

#D4C8C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B4304A

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

Preview Lab → · Contrast checker → · Palette generator →