#B4303C#B4303C

#B4303C is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.6% C 0.168 H 20.6°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#B4303C
RGB	rgb(180, 48, 60)
HSL	hsl(355, 58%, 45%)
HSV	hsv(355, 73%, 71%)
CMYK	cmyk(0%, 73.3%, 66.7%, 29.4%)
CIE-LAB	lab(41.45, 53.19, 24.99)
CIE-LCH	lch(41.45, 58.77, 25.16°)
OKLab	oklab(51.59% 0.1571 0.059)
OKLCH	oklch(51.59% 0.168 20.6)
XYZ	xyz(20.6972, 12.1465, 5.5288)
Luminance	0.1214 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4303C #30B4A8

analogous

#B4307E #B4303C #B46630

triadic

#B4303C #3CB430 #303CB4

tetradic

#B4303C #7EB430 #30B4A8 #6630B4

square

#B4303C #7EB430 #30B4A8 #6630B4

split-complementary

#B4303C #30B466 #307EB4

monochromatic

#53161C #84232C #B4303C #D1515C #DD8189

Accessibility & contrast

On white

6.12

#B4303C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B4303C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4303C

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4303C	#FFFFFF	#000000	##FFFFFF
##B4303C	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55503B

Deuteranopia (green-blind)

#766C38

Tritanopia (blue-blind)

#C60036

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b4303c;
/* rgb */ color: rgb(180, 48, 60);
/* oklch */ color: oklch(51.6% 0.168 20.6);

Tailwind

colors: {
  custom: {
    50: '#d27271',
    500: '#b4303c',
    950: '#000000',
  },
}

SCSS

$custom: #b4303c;
$custom-light: #d27271;
$custom-dark: #000000;

JSON

{
  "hex": "#b4303c",
  "rgb": {
    "r": 180,
    "g": 48,
    "b": 60
  },
  "hsl": {
    "h": 354.545,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.5159,
    "c": 0.16782,
    "h": 20.6
  },
  "luminance": 0.12143
}

Semantic roles & 50–950 ramp

primary

#B4303C

secondary

#79C6BF

accent

#E1D347

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B4303C

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

Preview Lab → · Contrast checker → · Palette generator →