#B3304B#B3304B

#B3304B is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.7% C 0.167 H 13.6°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#B3304B
RGB	rgb(179, 48, 75)
HSL	hsl(348, 58%, 45%)
HSV	hsv(348, 73%, 70%)
CMYK	cmyk(0%, 73.2%, 58.1%, 29.8%)
CIE-LAB	lab(41.55, 53.84, 15.76)
CIE-LCH	lch(41.55, 56.10, 16.32°)
OKLab	oklab(51.72% 0.1622 0.0391)
OKLCH	oklch(51.72% 0.167 13.6)
XYZ	xyz(20.9194, 12.2086, 7.9102)
Luminance	0.1221 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3304B #30B398

analogous

#B3308C #B3304B #B35730

triadic

#B3304B #4BB330 #304BB3

tetradic

#B3304B #8CB330 #30B398 #5730B3

square

#B3304B #8CB330 #30B398 #5730B3

split-complementary

#B3304B #30B357 #308CB3

monochromatic

#521623 #832337 #B3304B #D0506A #DD8093

Accessibility & contrast

On white

6.10

#B3304B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B3304B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3304B

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3304B	#FFFFFF	#000000	##FFFFFF
##B3304B	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52514B

Deuteranopia (green-blind)

#746C48

Tritanopia (blue-blind)

#C4083B

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b3304b;
/* rgb */ color: rgb(179, 48, 75);
/* oklch */ color: oklch(51.7% 0.167 13.6);

Tailwind

colors: {
  custom: {
    50: '#d0737d',
    500: '#b3304b',
    950: '#000000',
  },
}

SCSS

$custom: #b3304b;
$custom-light: #d0737d;
$custom-dark: #000000;

JSON

{
  "hex": "#b3304b",
  "rgb": {
    "r": 179,
    "g": 48,
    "b": 75
  },
  "hsl": {
    "h": 347.634,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.5172,
    "c": 0.16683,
    "h": 13.6
  },
  "luminance": 0.12206
}

Semantic roles & 50–950 ramp

primary

#B3304B

secondary

#79C6B6

accent

#E1C147

background

#FDF7F7

surface

#FBEDEE

border

#D4C8C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B3304B

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

Preview Lab → · Contrast checker → · Palette generator →