#B43840#B43840

#B43840 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.160 H 21.0°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#B43840
RGB	rgb(180, 56, 64)
HSL	hsl(356, 53%, 46%)
HSV	hsv(356, 69%, 71%)
CMYK	cmyk(0%, 68.9%, 64.4%, 29.4%)
CIE-LAB	lab(42.62, 50.39, 24.02)
CIE-LCH	lch(42.62, 55.82, 25.49°)
OKLab	oklab(52.49% 0.149 0.0573)
OKLCH	oklch(52.49% 0.16 21)
XYZ	xyz(21.1641, 12.9048, 6.2259)
Luminance	0.1290 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43840 #38B4AC

analogous

#B4387E #B43840 #B46E38

triadic

#B43840 #40B438 #3840B4

tetradic

#B43840 #7EB438 #38B4AC #6E38B4

square

#B43840 #7EB438 #38B4AC #6E38B4

split-complementary

#B43840 #38B46E #387EB4

monochromatic

#571B1F #85292F #B43840 #CD5D64 #DB8B91

Accessibility & contrast

On white

5.87

#B43840 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B43840 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43840

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43840	#FFFFFF	#000000	##FFFFFF
##B43840	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59543F

Deuteranopia (green-blind)

#796E3D

Tritanopia (blue-blind)

#C5173C

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43840;
/* rgb */ color: rgb(180, 56, 64);
/* oklch */ color: oklch(52.5% 0.160 21.0);

Tailwind

colors: {
  custom: {
    50: '#d17674',
    500: '#b43840',
    950: '#000000',
  },
}

SCSS

$custom: #b43840;
$custom-light: #d17674;
$custom-dark: #000000;

JSON

{
  "hex": "#b43840",
  "rgb": {
    "r": 180,
    "g": 56,
    "b": 64
  },
  "hsl": {
    "h": 356.129,
    "s": 52.542,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52485,
    "c": 0.15963,
    "h": 21
  },
  "luminance": 0.12902
}

Semantic roles & 50–950 ramp

primary

#B43840

secondary

#82C5C1

accent

#DCD34C

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B43840

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

Preview Lab → · Contrast checker → · Palette generator →