#B42F1A#B42F1A

#B42F1A is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.1% C 0.173 H 31.8°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#B42F1A
RGB	rgb(180, 47, 26)
HSL	hsl(8, 75%, 40%)
HSV	hsv(8, 86%, 71%)
CMYK	cmyk(0%, 73.9%, 85.6%, 29.4%)
CIE-LAB	lab(40.92, 52.19, 43.64)
CIE-LCH	lch(40.92, 68.03, 39.90°)
OKLab	oklab(51.07% 0.147 0.0911)
OKLCH	oklch(51.07% 0.173 31.8)
XYZ	xyz(20.0278, 11.8141, 2.2029)
Luminance	0.1181 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42F1A #1A9FB4

analogous

#B41A52 #B42F1A #B47C1A

triadic

#B42F1A #1AB42F #2F1AB4

tetradic

#B42F1A #52B41A #1A9FB4 #7C1AB4

square

#B42F1A #52B41A #1A9FB4 #7C1AB4

split-complementary

#B42F1A #1AB47C #1A52B4

monochromatic

#49130B #7F2112 #B42F1A #E0442B #E87360

Accessibility & contrast

On white

6.25

#B42F1A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#B42F1A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42F1A

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42F1A	#FFFFFF	#000000	##FFFFFF
##B42F1A	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E15

Deuteranopia (green-blind)

#796B12

Tritanopia (blue-blind)

#C7002C

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b42f1a;
/* rgb */ color: rgb(180, 47, 26);
/* oklch */ color: oklch(51.1% 0.173 31.8);

Tailwind

colors: {
  custom: {
    50: '#d4715a',
    500: '#b42f1a',
    950: '#000000',
  },
}

SCSS

$custom: #b42f1a;
$custom-light: #d4715a;
$custom-dark: #000000;

JSON

{
  "hex": "#b42f1a",
  "rgb": {
    "r": 180,
    "g": 47,
    "b": 26
  },
  "hsl": {
    "h": 8.182,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.51068,
    "c": 0.17294,
    "h": 31.8
  },
  "luminance": 0.11811
}

Semantic roles & 50–950 ramp

primary

#B42F1A

secondary

#5DBDCC

accent

#D8F136

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B42F1A

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

Preview Lab → · Contrast checker → · Palette generator →