#B53840#B53840

#B53840 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.7% C 0.161 H 21.1°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#B53840
RGB	rgb(181, 56, 64)
HSL	hsl(356, 53%, 46%)
HSV	hsv(356, 69%, 71%)
CMYK	cmyk(0%, 69.1%, 64.6%, 29%)
CIE-LAB	lab(42.80, 50.71, 24.29)
CIE-LCH	lch(42.80, 56.23, 25.59°)
OKLab	oklab(52.65% 0.1499 0.0579)
OKLCH	oklch(52.65% 0.161 21.1)
XYZ	xyz(21.3978, 13.0253, 6.2369)
Luminance	0.1302 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53840 #38B5AD

analogous

#B5387F #B53840 #B56F38

triadic

#B53840 #40B538 #3840B5

tetradic

#B53840 #7FB538 #38B5AD #6F38B5

square

#B53840 #7FB538 #38B5AD #6F38B5

split-complementary

#B53840 #38B56F #387FB5

monochromatic

#581B1F #862A2F #B53840 #CD5D64 #DB8C91

Accessibility & contrast

On white

5.83

#B53840 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B53840 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53840

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53840	#FFFFFF	#000000	##FFFFFF
##B53840	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A543F

Deuteranopia (green-blind)

#796F3C

Tritanopia (blue-blind)

#C7163C

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b53840;
/* rgb */ color: rgb(181, 56, 64);
/* oklch */ color: oklch(52.7% 0.161 21.1);

Tailwind

colors: {
  custom: {
    50: '#d27774',
    500: '#b53840',
    950: '#000000',
  },
}

SCSS

$custom: #b53840;
$custom-light: #d27774;
$custom-dark: #000000;

JSON

{
  "hex": "#b53840",
  "rgb": {
    "r": 181,
    "g": 56,
    "b": 64
  },
  "hsl": {
    "h": 356.16,
    "s": 52.743,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52654,
    "c": 0.16069,
    "h": 21.1
  },
  "luminance": 0.13022
}

Semantic roles & 50–950 ramp

primary

#B53840

secondary

#83C6C2

accent

#DCD34C

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B53840

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

Preview Lab → · Contrast checker → · Palette generator →