#B42A1A#B42A1A

#B42A1A is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.6% C 0.177 H 30.5°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#B42A1A
RGB	rgb(180, 42, 26)
HSL	hsl(6, 75%, 40%)
HSV	hsv(6, 86%, 71%)
CMYK	cmyk(0%, 76.7%, 85.6%, 29.4%)
CIE-LAB	lab(40.31, 53.89, 43.11)
CIE-LCH	lch(40.31, 69.01, 38.65°)
OKLab	oklab(50.61% 0.1523 0.0899)
OKLCH	oklch(50.61% 0.177 30.5)
XYZ	xyz(19.8393, 11.4370, 2.1400)
Luminance	0.1143 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42A1A #1AA4B4

analogous

#B41A57 #B42A1A #B4771A

triadic

#B42A1A #1AB42A #2A1AB4

tetradic

#B42A1A #57B41A #1AA4B4 #771AB4

square

#B42A1A #57B41A #1AA4B4 #771AB4

split-complementary

#B42A1A #1AB477 #1A57B4

monochromatic

#49110B #7F1E12 #B42A1A #E03E2B #E86E60

Accessibility & contrast

On white

6.39

#B42A1A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#B42A1A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42A1A

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42A1A	#FFFFFF	#000000	##FFFFFF
##B42A1A	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554C16

Deuteranopia (green-blind)

#776A11

Tritanopia (blue-blind)

#C70028

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b42a1a;
/* rgb */ color: rgb(180, 42, 26);
/* oklch */ color: oklch(50.6% 0.177 30.5);

Tailwind

colors: {
  custom: {
    50: '#d46f59',
    500: '#b42a1a',
    950: '#000000',
  },
}

SCSS

$custom: #b42a1a;
$custom-light: #d46f59;
$custom-dark: #000000;

JSON

{
  "hex": "#b42a1a",
  "rgb": {
    "r": 180,
    "g": 42,
    "b": 26
  },
  "hsl": {
    "h": 6.234,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50611,
    "c": 0.17684,
    "h": 30.5
  },
  "luminance": 0.11434
}

Semantic roles & 50–950 ramp

primary

#B42A1A

secondary

#5DC1CC

accent

#DEF136

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B42A1A

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

Preview Lab → · Contrast checker → · Palette generator →