#B42E1A#B42E1A

#B42E1A is a mid, vivid red. Relative luminance 0.117; OKLCH L 51.0% C 0.174 H 31.5°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#B42E1A
RGB	rgb(180, 46, 26)
HSL	hsl(8, 75%, 40%)
HSV	hsv(8, 86%, 71%)
CMYK	cmyk(0%, 74.4%, 85.6%, 29.4%)
CIE-LAB	lab(40.79, 52.54, 43.53)
CIE-LCH	lch(40.79, 68.23, 39.64°)
OKLab	oklab(50.97% 0.1481 0.0908)
OKLCH	oklch(50.97% 0.174 31.5)
XYZ	xyz(19.9883, 11.7350, 2.1897)
Luminance	0.1173 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42E1A #1AA0B4

analogous

#B41A53 #B42E1A #B47B1A

triadic

#B42E1A #1AB42E #2E1AB4

tetradic

#B42E1A #53B41A #1AA0B4 #7B1AB4

square

#B42E1A #53B41A #1AA0B4 #7B1AB4

split-complementary

#B42E1A #1AB47B #1A53B4

monochromatic

#49130B #7F2012 #B42E1A #E0422B #E87260

Accessibility & contrast

On white

6.28

#B42E1A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#B42E1A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42E1A

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42E1A	#FFFFFF	#000000	##FFFFFF
##B42E1A	1.00	6.28	3.35	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574D16

Deuteranopia (green-blind)

#786B11

Tritanopia (blue-blind)

#C7002B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b42e1a;
/* rgb */ color: rgb(180, 46, 26);
/* oklch */ color: oklch(51.0% 0.174 31.5);

Tailwind

colors: {
  custom: {
    50: '#d47159',
    500: '#b42e1a',
    950: '#000000',
  },
}

SCSS

$custom: #b42e1a;
$custom-light: #d47159;
$custom-dark: #000000;

JSON

{
  "hex": "#b42e1a",
  "rgb": {
    "r": 180,
    "g": 46,
    "b": 26
  },
  "hsl": {
    "h": 7.792,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50973,
    "c": 0.17375,
    "h": 31.5
  },
  "luminance": 0.11732
}

Semantic roles & 50–950 ramp

primary

#B42E1A

secondary

#5DBECC

accent

#D9F136

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B42E1A

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

Preview Lab → · Contrast checker → · Palette generator →