#B4282A#B4282A

#B4282A is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.6% C 0.176 H 25.6°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#B4282A
RGB	rgb(180, 40, 42)
HSL	hsl(359, 64%, 43%)
HSV	hsv(359, 78%, 71%)
CMYK	cmyk(0%, 77.8%, 76.7%, 29.4%)
CIE-LAB	lab(40.23, 55.02, 34.37)
CIE-LCH	lch(40.23, 64.88, 31.99°)
OKLab	oklab(50.6% 0.159 0.0762)
OKLCH	oklch(50.6% 0.176 25.6)
XYZ	xyz(20.0015, 11.3912, 3.3356)
Luminance	0.1139 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4282A #28B4B2

analogous

#B42870 #B4282A #B46C28

triadic

#B4282A #2AB428 #282AB4

tetradic

#B4282A #70B428 #28B4B2 #6C28B4

square

#B4282A #70B428 #28B4B2 #6C28B4

split-complementary

#B4282A #28B46C #2870B4

monochromatic

#501213 #821D1E #B4282A #D54446 #E17677

Accessibility & contrast

On white

6.41

#B4282A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#B4282A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4282A

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4282A	#FFFFFF	#000000	##FFFFFF
##B4282A	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534B28

Deuteranopia (green-blind)

#766A24

Tritanopia (blue-blind)

#C6002B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b4282a;
/* rgb */ color: rgb(180, 40, 42);
/* oklch */ color: oklch(50.6% 0.176 25.6);

Tailwind

colors: {
  custom: {
    50: '#d36f64',
    500: '#b4282a',
    950: '#000000',
  },
}

SCSS

$custom: #b4282a;
$custom-light: #d36f64;
$custom-dark: #000000;

JSON

{
  "hex": "#b4282a",
  "rgb": {
    "r": 180,
    "g": 40,
    "b": 42
  },
  "hsl": {
    "h": 359.143,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50603,
    "c": 0.17633,
    "h": 25.6
  },
  "luminance": 0.11388
}

Semantic roles & 50–950 ramp

primary

#B4282A

secondary

#70C8C7

accent

#E7E441

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B4282A

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

Preview Lab → · Contrast checker → · Palette generator →