#B43E1F#B43E1F

#B43E1F is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.159 H 35.3°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B43E1F
RGB	rgb(180, 62, 31)
HSL	hsl(12, 71%, 41%)
HSV	hsv(12, 83%, 71%)
CMYK	cmyk(0%, 65.6%, 82.8%, 29.4%)
CIE-LAB	lab(43.14, 46.38, 43.22)
CIE-LCH	lch(43.14, 63.39, 42.98°)
OKLab	oklab(52.74% 0.1299 0.0921)
OKLCH	oklch(52.74% 0.159 35.3)
XYZ	xyz(20.7947, 13.2505, 2.7587)
Luminance	0.1325 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43E1F #1F95B4

analogous

#B41F4B #B43E1F #B4891F

triadic

#B43E1F #1FB43E #3E1FB4

tetradic

#B43E1F #4BB41F #1F95B4 #891FB4

square

#B43E1F #4BB41F #1F95B4 #891FB4

split-complementary

#B43E1F #1FB489 #1F4BB4

monochromatic

#4C1A0D #802C16 #B43E1F #DC5734 #E58268

Accessibility & contrast

On white

5.75

#B43E1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B43E1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43E1F

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43E1F	#FFFFFF	#000000	##FFFFFF
##B43E1F	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60551A

Deuteranopia (green-blind)

#7D7019

Tritanopia (blue-blind)

#C61B38

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b43e1f;
/* rgb */ color: rgb(180, 62, 31);
/* oklch */ color: oklch(52.7% 0.159 35.3);

Tailwind

colors: {
  custom: {
    50: '#d3795e',
    500: '#b43e1f',
    950: '#000000',
  },
}

SCSS

$custom: #b43e1f;
$custom-light: #d3795e;
$custom-dark: #000000;

JSON

{
  "hex": "#b43e1f",
  "rgb": {
    "r": 180,
    "g": 62,
    "b": 31
  },
  "hsl": {
    "h": 12.483,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.52743,
    "c": 0.15921,
    "h": 35.3
  },
  "luminance": 0.13247
}

Semantic roles & 50–950 ramp

primary

#B43E1F

secondary

#64B5CB

accent

#C8ED3A

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B43E1F

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

Preview Lab → · Contrast checker → · Palette generator →