#B43640#B43640

#B43640 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.3% C 0.162 H 20.4°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#B43640
RGB	rgb(180, 54, 64)
HSL	hsl(355, 54%, 46%)
HSV	hsv(355, 70%, 71%)
CMYK	cmyk(0%, 70%, 64.4%, 29.4%)
CIE-LAB	lab(42.33, 51.18, 23.65)
CIE-LCH	lch(42.33, 56.38, 24.80°)
OKLab	oklab(52.27% 0.1515 0.0565)
OKLCH	oklch(52.27% 0.162 20.4)
XYZ	xyz(21.0691, 12.7148, 6.1943)
Luminance	0.1271 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43640 #36B4AA

analogous

#B4367F #B43640 #B46B36

triadic

#B43640 #40B436 #3640B4

tetradic

#B43640 #7FB436 #36B4AA #6B36B4

square

#B43640 #7FB436 #36B4AA #6B36B4

split-complementary

#B43640 #36B46B #367FB4

monochromatic

#561A1F #85282F #B43640 #CD5A63 #DC898F

Accessibility & contrast

On white

5.93

#B43640 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#B43640 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43640

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43640	#FFFFFF	#000000	##FFFFFF
##B43640	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58533F

Deuteranopia (green-blind)

#786E3C

Tritanopia (blue-blind)

#C5123B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b43640;
/* rgb */ color: rgb(180, 54, 64);
/* oklch */ color: oklch(52.3% 0.162 20.4);

Tailwind

colors: {
  custom: {
    50: '#d17574',
    500: '#b43640',
    950: '#000000',
  },
}

SCSS

$custom: #b43640;
$custom-light: #d17574;
$custom-dark: #000000;

JSON

{
  "hex": "#b43640",
  "rgb": {
    "r": 180,
    "g": 54,
    "b": 64
  },
  "hsl": {
    "h": 355.238,
    "s": 53.846,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52269,
    "c": 0.16169,
    "h": 20.4
  },
  "luminance": 0.12712
}

Semantic roles & 50–950 ramp

primary

#B43640

secondary

#80C6C0

accent

#DDD24B

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B43640

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

Preview Lab → · Contrast checker → · Palette generator →