#B43A1A#B43A1A

#B43A1A is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.2% C 0.164 H 35.1°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B43A1A
RGB	rgb(180, 58, 26)
HSL	hsl(12, 75%, 40%)
HSV	hsv(12, 86%, 71%)
CMYK	cmyk(0%, 67.8%, 85.6%, 29.4%)
CIE-LAB	lab(42.47, 47.94, 44.98)
CIE-LCH	lch(42.47, 65.74, 43.18°)
OKLab	oklab(52.23% 0.1339 0.0942)
OKLCH	oklch(52.23% 0.164 35.1)
XYZ	xyz(20.5243, 12.8071, 2.3684)
Luminance	0.1280 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43A1A #1A94B4

analogous

#B41A47 #B43A1A #B4871A

triadic

#B43A1A #1AB43A #3A1AB4

tetradic

#B43A1A #47B41A #1A94B4 #871AB4

square

#B43A1A #47B41A #1A94B4 #871AB4

split-complementary

#B43A1A #1AB487 #1A47B4

monochromatic

#49180B #7F2912 #B43A1A #E0512B #E87D60

Accessibility & contrast

On white

5.90

#B43A1A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B43A1A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43A1A

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43A1A	#FFFFFF	#000000	##FFFFFF
##B43A1A	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5314

Deuteranopia (green-blind)

#7C6E13

Tritanopia (blue-blind)

#C71034

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b43a1a;
/* rgb */ color: rgb(180, 58, 26);
/* oklch */ color: oklch(52.2% 0.164 35.1);

Tailwind

colors: {
  custom: {
    50: '#d4775a',
    500: '#b43a1a',
    950: '#000000',
  },
}

SCSS

$custom: #b43a1a;
$custom-light: #d4775a;
$custom-dark: #000000;

JSON

{
  "hex": "#b43a1a",
  "rgb": {
    "r": 180,
    "g": 58,
    "b": 26
  },
  "hsl": {
    "h": 12.468,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.5223,
    "c": 0.16367,
    "h": 35.1
  },
  "luminance": 0.12804
}

Semantic roles & 50–950 ramp

primary

#B43A1A

secondary

#5DB5CC

accent

#CBF136

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B43A1A

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

Preview Lab → · Contrast checker → · Palette generator →