#B42D1F#B42D1F

#B42D1F is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.9% C 0.174 H 30.0°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#B42D1F
RGB	rgb(180, 45, 31)
HSL	hsl(6, 71%, 41%)
HSV	hsv(6, 83%, 71%)
CMYK	cmyk(0%, 75%, 82.8%, 29.4%)
CIE-LAB	lab(40.71, 53.02, 40.95)
CIE-LCH	lch(40.71, 66.99, 37.68°)
OKLab	oklab(50.92% 0.1505 0.087)
OKLCH	oklch(50.92% 0.174 30)
XYZ	xyz(20.0105, 11.6822, 2.4973)
Luminance	0.1168 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42D1F #1FA6B4

analogous

#B41F5B #B42D1F #B4781F

triadic

#B42D1F #1FB42D #2D1FB4

tetradic

#B42D1F #5BB41F #1FA6B4 #781FB4

square

#B42D1F #5BB41F #1FA6B4 #781FB4

split-complementary

#B42D1F #1FB478 #1F5BB4

monochromatic

#4C130D #802016 #B42D1F #DC4434 #E57468

Accessibility & contrast

On white

6.30

#B42D1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#B42D1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42D1F

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42D1F	#FFFFFF	#000000	##FFFFFF
##B42D1F	1.00	6.30	3.34	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574D1C

Deuteranopia (green-blind)

#786B18

Tritanopia (blue-blind)

#C7002B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b42d1f;
/* rgb */ color: rgb(180, 45, 31);
/* oklch */ color: oklch(50.9% 0.174 30.0);

Tailwind

colors: {
  custom: {
    50: '#d4715d',
    500: '#b42d1f',
    950: '#000000',
  },
}

SCSS

$custom: #b42d1f;
$custom-light: #d4715d;
$custom-dark: #000000;

JSON

{
  "hex": "#b42d1f",
  "rgb": {
    "r": 180,
    "g": 45,
    "b": 31
  },
  "hsl": {
    "h": 5.638,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.50921,
    "c": 0.17384,
    "h": 30
  },
  "luminance": 0.11679
}

Semantic roles & 50–950 ramp

primary

#B42D1F

secondary

#64C1CB

accent

#DDED3A

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B42D1F

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

Preview Lab → · Contrast checker → · Palette generator →