#B1304B#B1304B

#B1304B is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.4% C 0.165 H 13.3°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#B1304B
RGB	rgb(177, 48, 75)
HSL	hsl(347, 57%, 44%)
HSV	hsv(347, 73%, 69%)
CMYK	cmyk(0%, 72.9%, 57.6%, 30.6%)
CIE-LAB	lab(41.17, 53.23, 15.19)
CIE-LCH	lch(41.17, 55.36, 15.93°)
OKLab	oklab(51.37% 0.1605 0.0378)
OKLCH	oklch(51.37% 0.165 13.3)
XYZ	xyz(20.4604, 11.9719, 7.8887)
Luminance	0.1197 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1304B #30B196

analogous

#B1308C #B1304B #B15630

triadic

#B1304B #4BB130 #304BB1

tetradic

#B1304B #8CB130 #30B196 #5630B1

square

#B1304B #8CB130 #30B196 #5630B1

split-complementary

#B1304B #30B156 #308CB1

monochromatic

#511622 #812337 #B1304B #CF4F6A #DC7F93

Accessibility & contrast

On white

6.19

#B1304B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B1304B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1304B

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1304B	#FFFFFF	#000000	##FFFFFF
##B1304B	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)

#52504B

Deuteranopia (green-blind)

#736B48

Tritanopia (blue-blind)

#C20B3B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b1304b;
/* rgb */ color: rgb(177, 48, 75);
/* oklch */ color: oklch(51.4% 0.165 13.3);

Tailwind

colors: {
  custom: {
    50: '#cf727d',
    500: '#b1304b',
    950: '#000000',
  },
}

SCSS

$custom: #b1304b;
$custom-light: #cf727d;
$custom-dark: #000000;

JSON

{
  "hex": "#b1304b",
  "rgb": {
    "r": 177,
    "g": 48,
    "b": 75
  },
  "hsl": {
    "h": 347.442,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51374,
    "c": 0.16485,
    "h": 13.3
  },
  "luminance": 0.11969
}

Semantic roles & 50–950 ramp

primary

#B1304B

secondary

#78C5B5

accent

#E1C047

background

#FDF7F7

surface

#FBEDEE

border

#D4C8C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B1304B

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

Preview Lab → · Contrast checker → · Palette generator →