#B42818#B42818

#B42818 is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.4% C 0.179 H 30.5°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#B42818
RGB	rgb(180, 40, 24)
HSL	hsl(6, 76%, 40%)
HSV	hsv(6, 87%, 71%)
CMYK	cmyk(0%, 77.8%, 86.7%, 29.4%)
CIE-LAB	lab(40.06, 54.49, 43.86)
CIE-LCH	lch(40.06, 69.95, 38.84°)
OKLab	oklab(50.43% 0.1538 0.0907)
OKLCH	oklch(50.43% 0.179 30.5)
XYZ	xyz(19.7485, 11.2900, 2.0033)
Luminance	0.1129 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42818 #18A4B4

analogous

#B41856 #B42818 #B47618

triadic

#B42818 #18B428 #2818B4

tetradic

#B42818 #56B418 #18A4B4 #7618B4

square

#B42818 #56B418 #18A4B4 #7618B4

split-complementary

#B42818 #18B476 #1856B4

monochromatic

#48100A #7E1C11 #B42818 #E23A27 #E96B5D

Accessibility & contrast

On white

6.45

#B42818 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#B42818 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42818

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42818	#FFFFFF	#000000	##FFFFFF
##B42818	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554B14

Deuteranopia (green-blind)

#77690E

Tritanopia (blue-blind)

#C70026

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b42818;
/* rgb */ color: rgb(180, 40, 24);
/* oklch */ color: oklch(50.4% 0.179 30.5);

Tailwind

colors: {
  custom: {
    50: '#d56e58',
    500: '#b42818',
    950: '#000000',
  },
}

SCSS

$custom: #b42818;
$custom-light: #d56e58;
$custom-dark: #000000;

JSON

{
  "hex": "#b42818",
  "rgb": {
    "r": 180,
    "g": 40,
    "b": 24
  },
  "hsl": {
    "h": 6.154,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.50426,
    "c": 0.17857,
    "h": 30.5
  },
  "luminance": 0.11287
}

Semantic roles & 50–950 ramp

primary

#B42818

secondary

#5BC1CD

accent

#E0F335

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160803

muted

#847B78

Preview Lab

Preview with #B42818

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

Preview Lab → · Contrast checker → · Palette generator →