#B42718#B42718

#B42718 is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.3% C 0.179 H 30.3°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#B42718
RGB	rgb(180, 39, 24)
HSL	hsl(6, 76%, 40%)
HSV	hsv(6, 87%, 71%)
CMYK	cmyk(0%, 78.3%, 86.7%, 29.4%)
CIE-LAB	lab(39.95, 54.79, 43.77)
CIE-LCH	lch(39.95, 70.13, 38.62°)
OKLab	oklab(50.34% 0.1548 0.0905)
OKLCH	oklch(50.34% 0.179 30.3)
XYZ	xyz(19.7152, 11.2235, 1.9923)
Luminance	0.1122 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42718 #18A5B4

analogous

#B41857 #B42718 #B47518

triadic

#B42718 #18B427 #2718B4

tetradic

#B42718 #57B418 #18A5B4 #7518B4

square

#B42718 #57B418 #18A5B4 #7518B4

split-complementary

#B42718 #18B475 #1857B4

monochromatic

#48100A #7E1B11 #B42718 #E23927 #E96A5D

Accessibility & contrast

On white

6.47

#B42718 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#B42718 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42718

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42718	#FFFFFF	#000000	##FFFFFF
##B42718	1.00	6.47	3.24	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544A14

Deuteranopia (green-blind)

#77690E

Tritanopia (blue-blind)

#C70026

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b42718;
/* rgb */ color: rgb(180, 39, 24);
/* oklch */ color: oklch(50.3% 0.179 30.3);

Tailwind

colors: {
  custom: {
    50: '#d56e58',
    500: '#b42718',
    950: '#000000',
  },
}

SCSS

$custom: #b42718;
$custom-light: #d56e58;
$custom-dark: #000000;

JSON

{
  "hex": "#b42718",
  "rgb": {
    "r": 180,
    "g": 39,
    "b": 24
  },
  "hsl": {
    "h": 5.769,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.50344,
    "c": 0.17929,
    "h": 30.3
  },
  "luminance": 0.1122
}

Semantic roles & 50–950 ramp

primary

#B42718

secondary

#5BC2CD

accent

#E1F335

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160803

muted

#847B78

Preview Lab

Preview with #B42718

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

Preview Lab → · Contrast checker → · Palette generator →