#B43F1B#B43F1B

#B43F1B is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.8% C 0.159 H 36.7°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#B43F1B
RGB	rgb(180, 63, 27)
HSL	hsl(14, 74%, 41%)
HSV	hsv(14, 85%, 71%)
CMYK	cmyk(0%, 65%, 85%, 29.4%)
CIE-LAB	lab(43.27, 45.83, 45.22)
CIE-LCH	lch(43.27, 64.38, 44.62°)
OKLab	oklab(52.84% 0.1275 0.0951)
OKLCH	oklch(52.84% 0.159 36.7)
XYZ	xyz(20.8001, 13.3405, 2.5164)
Luminance	0.1334 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43F1B #1B90B4

analogous

#B41B43 #B43F1B #B48C1B

triadic

#B43F1B #1BB43F #3F1BB4

tetradic

#B43F1B #43B41B #1B90B4 #8C1BB4

square

#B43F1B #43B41B #1B90B4 #8C1BB4

split-complementary

#B43F1B #1BB48C #1B43B4

monochromatic

#4A1A0B #7F2C13 #B43F1B #DF572D #E78162

Accessibility & contrast

On white

5.73

#B43F1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B43F1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43F1B

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43F1B	#FFFFFF	#000000	##FFFFFF
##B43F1B	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615615

Deuteranopia (green-blind)

#7E7015

Tritanopia (blue-blind)

#C61D38

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b43f1b;
/* rgb */ color: rgb(180, 63, 27);
/* oklch */ color: oklch(52.8% 0.159 36.7);

Tailwind

colors: {
  custom: {
    50: '#d3795b',
    500: '#b43f1b',
    950: '#000000',
  },
}

SCSS

$custom: #b43f1b;
$custom-light: #d3795b;
$custom-dark: #000000;

JSON

{
  "hex": "#b43f1b",
  "rgb": {
    "r": 180,
    "g": 63,
    "b": 27
  },
  "hsl": {
    "h": 14.118,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.52835,
    "c": 0.15907,
    "h": 36.7
  },
  "luminance": 0.13337
}

Semantic roles & 50–950 ramp

primary

#B43F1B

secondary

#5FB2CC

accent

#C5F137

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B43F1B

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

Preview Lab → · Contrast checker → · Palette generator →