#B4291A#B4291A

#B4291A is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.5% C 0.178 H 30.3°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#B4291A
RGB	rgb(180, 41, 26)
HSL	hsl(6, 75%, 40%)
HSV	hsv(6, 86%, 71%)
CMYK	cmyk(0%, 77.2%, 85.6%, 29.4%)
CIE-LAB	lab(40.19, 54.22, 43.01)
CIE-LCH	lch(40.19, 69.20, 38.42°)
OKLab	oklab(50.53% 0.1533 0.0896)
OKLCH	oklch(50.53% 0.178 30.3)
XYZ	xyz(19.8042, 11.3670, 2.1284)
Luminance	0.1136 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4291A #1AA5B4

analogous

#B41A58 #B4291A #B4761A

triadic

#B4291A #1AB429 #291AB4

tetradic

#B4291A #58B41A #1AA5B4 #761AB4

square

#B4291A #58B41A #1AA5B4 #761AB4

split-complementary

#B4291A #1AB476 #1A58B4

monochromatic

#49110B #7F1D12 #B4291A #E03D2B #E86E60

Accessibility & contrast

On white

6.42

#B4291A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#B4291A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4291A

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4291A	#FFFFFF	#000000	##FFFFFF
##B4291A	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554B16

Deuteranopia (green-blind)

#776A11

Tritanopia (blue-blind)

#C70027

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b4291a;
/* rgb */ color: rgb(180, 41, 26);
/* oklch */ color: oklch(50.5% 0.178 30.3);

Tailwind

colors: {
  custom: {
    50: '#d46f59',
    500: '#b4291a',
    950: '#000000',
  },
}

SCSS

$custom: #b4291a;
$custom-light: #d46f59;
$custom-dark: #000000;

JSON

{
  "hex": "#b4291a",
  "rgb": {
    "r": 180,
    "g": 41,
    "b": 26
  },
  "hsl": {
    "h": 5.844,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50525,
    "c": 0.17759,
    "h": 30.3
  },
  "luminance": 0.11364
}

Semantic roles & 50–950 ramp

primary

#B4291A

secondary

#5DC2CC

accent

#DFF136

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B4291A

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

Preview Lab → · Contrast checker → · Palette generator →