#B4191A#B4191A

#B4191A is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.4% C 0.188 H 27.5°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#B4191A
RGB	rgb(180, 25, 26)
HSL	hsl(360, 76%, 40%)
HSV	hsv(360, 86%, 71%)
CMYK	cmyk(0%, 86.1%, 85.6%, 29.4%)
CIE-LAB	lab(38.68, 58.48, 41.69)
CIE-LCH	lch(38.68, 71.82, 35.49°)
OKLab	oklab(49.41% 0.1666 0.0866)
OKLCH	oklch(49.41% 0.188 27.5)
XYZ	xyz(19.3590, 10.4764, 1.9799)
Luminance	0.1047 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4191A #19B4B3

analogous

#B41967 #B4191A #B46619

triadic

#B4191A #1AB419 #191AB4

tetradic

#B4191A #67B419 #19B4B3 #6619B4

square

#B4191A #67B419 #19B4B3 #6619B4

split-complementary

#B4191A #19B466 #1967B4

monochromatic

#490A0A #7E1212 #B4191A #E1292A #E95F60

Accessibility & contrast

On white

6.79

#B4191A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#B4191A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4191A

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4191A	#FFFFFF	#000000	##FFFFFF
##B4191A	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4617

Deuteranopia (green-blind)

#746710

Tritanopia (blue-blind)

#C7001D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b4191a;
/* rgb */ color: rgb(180, 25, 26);
/* oklch */ color: oklch(49.4% 0.188 27.5);

Tailwind

colors: {
  custom: {
    50: '#d56958',
    500: '#b4191a',
    950: '#000000',
  },
}

SCSS

$custom: #b4191a;
$custom-light: #d56958;
$custom-dark: #000000;

JSON

{
  "hex": "#b4191a",
  "rgb": {
    "r": 180,
    "g": 25,
    "b": 26
  },
  "hsl": {
    "h": 359.613,
    "s": 75.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49405,
    "c": 0.18779,
    "h": 27.5
  },
  "luminance": 0.10473
}

Semantic roles & 50–950 ramp

primary

#B4191A

secondary

#5CCDCC

accent

#F2F136

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160703

muted

#847A78

Preview Lab

Preview with #B4191A

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

Preview Lab → · Contrast checker → · Palette generator →