#B42B18#B42B18

#B42B18 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.7% C 0.176 H 31.2°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#B42B18
RGB	rgb(180, 43, 24)
HSL	hsl(7, 76%, 40%)
HSV	hsv(7, 87%, 71%)
CMYK	cmyk(0%, 76.1%, 86.7%, 29.4%)
CIE-LAB	lab(40.41, 53.52, 44.15)
CIE-LCH	lch(40.41, 69.38, 39.52°)
OKLab	oklab(50.68% 0.1508 0.0914)
OKLCH	oklch(50.68% 0.176 31.2)
XYZ	xyz(19.8536, 11.5002, 2.0384)
Luminance	0.1150 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42B18 #18A1B4

analogous

#B41853 #B42B18 #B47918

triadic

#B42B18 #18B42B #2B18B4

tetradic

#B42B18 #53B418 #18A1B4 #7918B4

square

#B42B18 #53B418 #18A1B4 #7918B4

split-complementary

#B42B18 #18B479 #1853B4

monochromatic

#48110A #7E1E11 #B42B18 #E23E27 #E96E5D

Accessibility & contrast

On white

6.36

#B42B18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#B42B18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42B18

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42B18	#FFFFFF	#000000	##FFFFFF
##B42B18	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564C13

Deuteranopia (green-blind)

#786A0E

Tritanopia (blue-blind)

#C70028

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b42b18;
/* rgb */ color: rgb(180, 43, 24);
/* oklch */ color: oklch(50.7% 0.176 31.2);

Tailwind

colors: {
  custom: {
    50: '#d47058',
    500: '#b42b18',
    950: '#000000',
  },
}

SCSS

$custom: #b42b18;
$custom-light: #d47058;
$custom-dark: #000000;

JSON

{
  "hex": "#b42b18",
  "rgb": {
    "r": 180,
    "g": 43,
    "b": 24
  },
  "hsl": {
    "h": 7.308,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.50683,
    "c": 0.17635,
    "h": 31.2
  },
  "luminance": 0.11497
}

Semantic roles & 50–950 ramp

primary

#B42B18

secondary

#5BBFCD

accent

#DCF335

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160803

muted

#847B78

Preview Lab

Preview with #B42B18

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

Preview Lab → · Contrast checker → · Palette generator →