#B1304A#B1304A

#B1304A is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.4% C 0.165 H 13.7°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#B1304A
RGB	rgb(177, 48, 74)
HSL	hsl(348, 57%, 44%)
HSV	hsv(348, 73%, 69%)
CMYK	cmyk(0%, 72.9%, 58.2%, 30.6%)
CIE-LAB	lab(41.15, 53.16, 15.79)
CIE-LCH	lch(41.15, 55.45, 16.55°)
OKLab	oklab(51.35% 0.1601 0.0392)
OKLCH	oklch(51.35% 0.165 13.7)
XYZ	xyz(20.4264, 11.9583, 7.7098)
Luminance	0.1196 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1304A #30B197

analogous

#B1308B #B1304A #B15730

triadic

#B1304A #4AB130 #304AB1

tetradic

#B1304A #8BB130 #30B197 #5730B1

square

#B1304A #8BB130 #30B197 #5730B1

split-complementary

#B1304A #30B157 #308BB1

monochromatic

#511622 #812336 #B1304A #CF4F69 #DC7F92

Accessibility & contrast

On white

6.19

#B1304A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B1304A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1304A

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1304A	#FFFFFF	#000000	##FFFFFF
##B1304A	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52504A

Deuteranopia (green-blind)

#736B47

Tritanopia (blue-blind)

#C20A3B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b1304a;
/* rgb */ color: rgb(177, 48, 74);
/* oklch */ color: oklch(51.4% 0.165 13.7);

Tailwind

colors: {
  custom: {
    50: '#cf727c',
    500: '#b1304a',
    950: '#000000',
  },
}

SCSS

$custom: #b1304a;
$custom-light: #cf727c;
$custom-dark: #000000;

JSON

{
  "hex": "#b1304a",
  "rgb": {
    "r": 177,
    "g": 48,
    "b": 74
  },
  "hsl": {
    "h": 347.907,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51351,
    "c": 0.16478,
    "h": 13.7
  },
  "luminance": 0.11955
}

Semantic roles & 50–950 ramp

primary

#B1304A

secondary

#78C5B6

accent

#E1C247

background

#FDF7F7

surface

#FBEDEE

border

#D4C8C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B1304A

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

Preview Lab → · Contrast checker → · Palette generator →