#B43C1F#B43C1F

#B43C1F is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.161 H 34.6°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B43C1F
RGB	rgb(180, 60, 31)
HSL	hsl(12, 71%, 41%)
HSV	hsv(12, 83%, 71%)
CMYK	cmyk(0%, 66.7%, 82.8%, 29.4%)
CIE-LAB	lab(42.82, 47.24, 42.92)
CIE-LCH	lch(42.82, 63.83, 42.26°)
OKLab	oklab(52.5% 0.1325 0.0915)
OKLCH	oklch(52.5% 0.161 34.6)
XYZ	xyz(20.6880, 13.0370, 2.7231)
Luminance	0.1303 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43C1F #1F97B4

analogous

#B41F4D #B43C1F #B4871F

triadic

#B43C1F #1FB43C #3C1FB4

tetradic

#B43C1F #4DB41F #1F97B4 #871FB4

square

#B43C1F #4DB41F #1F97B4 #871FB4

split-complementary

#B43C1F #1FB487 #1F4DB4

monochromatic

#4C190D #802B16 #B43C1F #DC5534 #E58168

Accessibility & contrast

On white

5.82

#B43C1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B43C1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43C1F

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43C1F	#FFFFFF	#000000	##FFFFFF
##B43C1F	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F541A

Deuteranopia (green-blind)

#7D6F19

Tritanopia (blue-blind)

#C61737

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43c1f;
/* rgb */ color: rgb(180, 60, 31);
/* oklch */ color: oklch(52.5% 0.161 34.6);

Tailwind

colors: {
  custom: {
    50: '#d3785d',
    500: '#b43c1f',
    950: '#000000',
  },
}

SCSS

$custom: #b43c1f;
$custom-light: #d3785d;
$custom-dark: #000000;

JSON

{
  "hex": "#b43c1f",
  "rgb": {
    "r": 180,
    "g": 60,
    "b": 31
  },
  "hsl": {
    "h": 11.678,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.52503,
    "c": 0.161,
    "h": 34.6
  },
  "luminance": 0.13034
}

Semantic roles & 50–950 ramp

primary

#B43C1F

secondary

#64B7CB

accent

#CBED3A

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B43C1F

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

Preview Lab → · Contrast checker → · Palette generator →