#B43939#B43939

#B43939 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.159 H 24.5°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#B43939
RGB	rgb(180, 57, 57)
HSL	hsl(0, 52%, 46%)
HSV	hsv(0, 68%, 71%)
CMYK	cmyk(0%, 68.3%, 68.3%, 29.4%)
CIE-LAB	lab(42.65, 49.58, 28.30)
CIE-LCH	lch(42.65, 57.08, 29.72°)
OKLab	oklab(52.48% 0.145 0.066)
OKLCH	oklch(52.48% 0.159 24.5)
XYZ	xyz(21.0263, 12.9280, 5.2583)
Luminance	0.1293 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43939 #39B4B4

analogous

#B43977 #B43939 #B47739

triadic

#B43939 #39B439 #3939B4

tetradic

#B43939 #77B439 #39B4B4 #7739B4

square

#B43939 #77B439 #39B4B4 #7739B4

split-complementary

#B43939 #39B477 #3977B4

monochromatic

#571C1C #862A2A #B43939 #CC5E5E #DB8D8D

Accessibility & contrast

On white

5.86

#B43939 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B43939 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43939

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43939	#FFFFFF	#000000	##FFFFFF
##B43939	1.00	5.86	3.59	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5438

Deuteranopia (green-blind)

#7A6E35

Tritanopia (blue-blind)

#C6173A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43939;
/* rgb */ color: rgb(180, 57, 57);
/* oklch */ color: oklch(52.5% 0.159 24.5);

Tailwind

colors: {
  custom: {
    50: '#d2776f',
    500: '#b43939',
    950: '#000000',
  },
}

SCSS

$custom: #b43939;
$custom-light: #d2776f;
$custom-dark: #000000;

JSON

{
  "hex": "#b43939",
  "rgb": {
    "r": 180,
    "g": 57,
    "b": 57
  },
  "hsl": {
    "h": 0,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52475,
    "c": 0.1593,
    "h": 24.5
  },
  "luminance": 0.12925
}

Semantic roles & 50–950 ramp

primary

#B43939

secondary

#83C5C5

accent

#DBDB4C

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B43939

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

Preview Lab → · Contrast checker → · Palette generator →