#B43339#B43339

#B43339 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.8% C 0.165 H 22.7°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#B43339
RGB	rgb(180, 51, 57)
HSL	hsl(357, 56%, 45%)
HSV	hsv(357, 72%, 71%)
CMYK	cmyk(0%, 71.7%, 68.3%, 29.4%)
CIE-LAB	lab(41.80, 51.93, 27.25)
CIE-LCH	lch(41.80, 58.64, 27.69°)
OKLab	oklab(51.83% 0.1524 0.0637)
OKLCH	oklch(51.83% 0.165 22.7)
XYZ	xyz(20.7470, 12.3694, 5.1652)
Luminance	0.1237 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43339 #33B4AE

analogous

#B4337A #B43339 #B46D33

triadic

#B43339 #39B433 #3339B4

tetradic

#B43339 #7AB433 #33B4AE #6D33B4

square

#B43339 #7AB433 #33B4AE #6D33B4

split-complementary

#B43339 #33B46D #337AB4

monochromatic

#55181B #84252A #B43339 #CF555B #DC8589

Accessibility & contrast

On white

6.05

#B43339 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B43339 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43339

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43339	#FFFFFF	#000000	##FFFFFF
##B43339	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575138

Deuteranopia (green-blind)

#786D35

Tritanopia (blue-blind)

#C60436

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b43339;
/* rgb */ color: rgb(180, 51, 57);
/* oklch */ color: oklch(51.8% 0.165 22.7);

Tailwind

colors: {
  custom: {
    50: '#d2746f',
    500: '#b43339',
    950: '#000000',
  },
}

SCSS

$custom: #b43339;
$custom-light: #d2746f;
$custom-dark: #000000;

JSON

{
  "hex": "#b43339",
  "rgb": {
    "r": 180,
    "g": 51,
    "b": 57
  },
  "hsl": {
    "h": 357.209,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.51834,
    "c": 0.1652,
    "h": 22.7
  },
  "luminance": 0.12366
}

Semantic roles & 50–950 ramp

primary

#B43339

secondary

#7DC6C3

accent

#DFD849

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B43339

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

Preview Lab → · Contrast checker → · Palette generator →