#B43628#B43628

#B43628 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.165 H 29.9°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B43628
RGB	rgb(180, 54, 40)
HSL	hsl(6, 64%, 43%)
HSV	hsv(6, 78%, 71%)
CMYK	cmyk(0%, 70%, 77.8%, 29.4%)
CIE-LAB	lab(42.00, 50.00, 37.40)
CIE-LCH	lch(42.00, 62.44, 36.79°)
OKLab	oklab(51.91% 0.1428 0.0823)
OKLCH	oklch(51.91% 0.165 29.9)
XYZ	xyz(20.5269, 12.4979, 3.3386)
Luminance	0.1250 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43628 #28A6B4

analogous

#B42860 #B43628 #B47C28

triadic

#B43628 #28B436 #3628B4

tetradic

#B43628 #60B428 #28A6B4 #7C28B4

square

#B43628 #60B428 #28A6B4 #7C28B4

split-complementary

#B43628 #28B47C #2860B4

monochromatic

#501812 #82271D #B43628 #D55244 #E18176

Accessibility & contrast

On white

6.00

#B43628 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B43628 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43628

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43628	#FFFFFF	#000000	##FFFFFF
##B43628	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5225

Deuteranopia (green-blind)

#7A6D23

Tritanopia (blue-blind)

#C60634

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b43628;
/* rgb */ color: rgb(180, 54, 40);
/* oklch */ color: oklch(51.9% 0.165 29.9);

Tailwind

colors: {
  custom: {
    50: '#d37563',
    500: '#b43628',
    950: '#000000',
  },
}

SCSS

$custom: #b43628;
$custom-light: #d37563;
$custom-dark: #000000;

JSON

{
  "hex": "#b43628",
  "rgb": {
    "r": 180,
    "g": 54,
    "b": 40
  },
  "hsl": {
    "h": 6,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.51913,
    "c": 0.16478,
    "h": 29.9
  },
  "luminance": 0.12495
}

Semantic roles & 50–950 ramp

primary

#B43628

secondary

#70BFC8

accent

#D6E741

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B43628

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

Preview Lab → · Contrast checker → · Palette generator →