#B43428#B43428

#B43428 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.7% C 0.167 H 29.3°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#B43428
RGB	rgb(180, 52, 40)
HSL	hsl(5, 64%, 43%)
HSV	hsv(5, 78%, 71%)
CMYK	cmyk(0%, 71.1%, 77.8%, 29.4%)
CIE-LAB	lab(41.71, 50.77, 37.10)
CIE-LCH	lch(41.71, 62.88, 36.15°)
OKLab	oklab(51.7% 0.1452 0.0816)
OKLCH	oklch(51.7% 0.167 29.3)
XYZ	xyz(20.4357, 12.3156, 3.3082)
Luminance	0.1231 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43428 #28A8B4

analogous

#B42862 #B43428 #B47A28

triadic

#B43428 #28B434 #3428B4

tetradic

#B43428 #62B428 #28A8B4 #7A28B4

square

#B43428 #62B428 #28A8B4 #7A28B4

split-complementary

#B43428 #28B47A #2862B4

monochromatic

#501712 #82261D #B43428 #D55044 #E17F76

Accessibility & contrast

On white

6.07

#B43428 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B43428 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43428

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43428	#FFFFFF	#000000	##FFFFFF
##B43428	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5125

Deuteranopia (green-blind)

#796D23

Tritanopia (blue-blind)

#C60032

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b43428;
/* rgb */ color: rgb(180, 52, 40);
/* oklch */ color: oklch(51.7% 0.167 29.3);

Tailwind

colors: {
  custom: {
    50: '#d37463',
    500: '#b43428',
    950: '#000000',
  },
}

SCSS

$custom: #b43428;
$custom-light: #d37463;
$custom-dark: #000000;

JSON

{
  "hex": "#b43428",
  "rgb": {
    "r": 180,
    "g": 52,
    "b": 40
  },
  "hsl": {
    "h": 5.143,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.51701,
    "c": 0.16657,
    "h": 29.3
  },
  "luminance": 0.12312
}

Semantic roles & 50–950 ramp

primary

#B43428

secondary

#70C0C8

accent

#D8E741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B43428

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

Preview Lab → · Contrast checker → · Palette generator →