#B43540#B43540

#B43540 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.2% C 0.163 H 20.2°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#B43540
RGB	rgb(180, 53, 64)
HSL	hsl(355, 55%, 46%)
HSV	hsv(355, 71%, 71%)
CMYK	cmyk(0%, 70.6%, 64.4%, 29.4%)
CIE-LAB	lab(42.19, 51.57, 23.47)
CIE-LCH	lch(42.19, 56.66, 24.47°)
OKLab	oklab(52.16% 0.1527 0.0561)
OKLCH	oklch(52.16% 0.163 20.2)
XYZ	xyz(21.0231, 12.6227, 6.1789)
Luminance	0.1262 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43540 #35B4A9

analogous

#B4357F #B43540 #B46935

triadic

#B43540 #40B435 #3540B4

tetradic

#B43540 #7FB435 #35B4A9 #6935B4

square

#B43540 #7FB435 #35B4A9 #6935B4

split-complementary

#B43540 #35B469 #357FB4

monochromatic

#55191E #85272F #B43540 #CE5862 #DC888F

Accessibility & contrast

On white

5.96

#B43540 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B43540 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43540

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43540	#FFFFFF	#000000	##FFFFFF
##B43540	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58523F

Deuteranopia (green-blind)

#786D3C

Tritanopia (blue-blind)

#C50F3A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b43540;
/* rgb */ color: rgb(180, 53, 64);
/* oklch */ color: oklch(52.2% 0.163 20.2);

Tailwind

colors: {
  custom: {
    50: '#d27574',
    500: '#b43540',
    950: '#000000',
  },
}

SCSS

$custom: #b43540;
$custom-light: #d27574;
$custom-dark: #000000;

JSON

{
  "hex": "#b43540",
  "rgb": {
    "r": 180,
    "g": 53,
    "b": 64
  },
  "hsl": {
    "h": 354.803,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52164,
    "c": 0.16271,
    "h": 20.2
  },
  "luminance": 0.1262
}

Semantic roles & 50–950 ramp

primary

#B43540

secondary

#7FC6C0

accent

#DED14A

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B43540

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

Preview Lab → · Contrast checker → · Palette generator →