#B42828#B42828

#B42828 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.6% C 0.177 H 26.3°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#B42828
RGB	rgb(180, 40, 40)
HSL	hsl(0, 64%, 43%)
HSV	hsv(0, 78%, 71%)
CMYK	cmyk(0%, 77.8%, 77.8%, 29.4%)
CIE-LAB	lab(40.21, 54.95, 35.50)
CIE-LCH	lch(40.21, 65.42, 32.87°)
OKLab	oklab(50.58% 0.1583 0.0781)
OKLCH	oklch(50.58% 0.177 26.3)
XYZ	xyz(19.9666, 11.3773, 3.1518)
Luminance	0.1137 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42828 #28B4B4

analogous

#B4286E #B42828 #B46E28

triadic

#B42828 #28B428 #2828B4

tetradic

#B42828 #6EB428 #28B4B4 #6E28B4

square

#B42828 #6EB428 #28B4B4 #6E28B4

split-complementary

#B42828 #28B46E #286EB4

monochromatic

#501212 #821D1D #B42828 #D54444 #E17676

Accessibility & contrast

On white

6.41

#B42828 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#B42828 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42828

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42828	#FFFFFF	#000000	##FFFFFF
##B42828	1.00	6.41	3.27	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534B26

Deuteranopia (green-blind)

#766A22

Tritanopia (blue-blind)

#C6002A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b42828;
/* rgb */ color: rgb(180, 40, 40);
/* oklch */ color: oklch(50.6% 0.177 26.3);

Tailwind

colors: {
  custom: {
    50: '#d46f62',
    500: '#b42828',
    950: '#000000',
  },
}

SCSS

$custom: #b42828;
$custom-light: #d46f62;
$custom-dark: #000000;

JSON

{
  "hex": "#b42828",
  "rgb": {
    "r": 180,
    "g": 40,
    "b": 40
  },
  "hsl": {
    "h": 0,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50579,
    "c": 0.17657,
    "h": 26.3
  },
  "luminance": 0.11374
}

Semantic roles & 50–950 ramp

primary

#B42828

secondary

#70C8C8

accent

#E7E741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160805

muted

#847B79

Preview Lab

Preview with #B42828

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

Preview Lab → · Contrast checker → · Palette generator →