#B43C1B#B43C1B

#B43C1B is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.162 H 35.6°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#B43C1B
RGB	rgb(180, 60, 27)
HSL	hsl(13, 74%, 41%)
HSV	hsv(13, 85%, 71%)
CMYK	cmyk(0%, 66.7%, 85%, 29.4%)
CIE-LAB	lab(42.79, 47.13, 44.80)
CIE-LCH	lch(42.79, 65.02, 43.55°)
OKLab	oklab(52.47% 0.1315 0.0942)
OKLCH	oklch(52.47% 0.162 35.6)
XYZ	xyz(20.6385, 13.0172, 2.4625)
Luminance	0.1301 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43C1B #1B93B4

analogous

#B41B47 #B43C1B #B4881B

triadic

#B43C1B #1BB43C #3C1BB4

tetradic

#B43C1B #47B41B #1B93B4 #881BB4

square

#B43C1B #47B41B #1B93B4 #881BB4

split-complementary

#B43C1B #1BB488 #1B47B4

monochromatic

#4A190B #7F2A13 #B43C1B #DF532D #E77F62

Accessibility & contrast

On white

5.83

#B43C1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B43C1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43C1B

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43C1B	#FFFFFF	#000000	##FFFFFF
##B43C1B	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5415

Deuteranopia (green-blind)

#7D6F14

Tritanopia (blue-blind)

#C61636

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43c1b;
/* rgb */ color: rgb(180, 60, 27);
/* oklch */ color: oklch(52.5% 0.162 35.6);

Tailwind

colors: {
  custom: {
    50: '#d3785b',
    500: '#b43c1b',
    950: '#000000',
  },
}

SCSS

$custom: #b43c1b;
$custom-light: #d3785b;
$custom-dark: #000000;

JSON

{
  "hex": "#b43c1b",
  "rgb": {
    "r": 180,
    "g": 60,
    "b": 27
  },
  "hsl": {
    "h": 12.941,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.52471,
    "c": 0.16174,
    "h": 35.6
  },
  "luminance": 0.13014
}

Semantic roles & 50–950 ramp

primary

#B43C1B

secondary

#5FB4CC

accent

#C9F137

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B43C1B

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

Preview Lab → · Contrast checker → · Palette generator →