#B53539#B53539

#B53539 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.164 H 23.3°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#B53539
RGB	rgb(181, 53, 57)
HSL	hsl(358, 55%, 46%)
HSV	hsv(358, 71%, 71%)
CMYK	cmyk(0%, 70.7%, 68.5%, 29%)
CIE-LAB	lab(42.26, 51.49, 27.86)
CIE-LCH	lch(42.26, 58.54, 28.42°)
OKLab	oklab(52.21% 0.1509 0.065)
OKLCH	oklch(52.21% 0.164 23.3)
XYZ	xyz(21.0699, 12.6685, 5.2059)
Luminance	0.1267 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53539 #35B5B1

analogous

#B53579 #B53539 #B57135

triadic

#B53539 #39B535 #3539B5

tetradic

#B53539 #79B535 #35B5B1 #7135B5

square

#B53539 #79B535 #35B5B1 #7135B5

split-complementary

#B53539 #35B571 #3579B5

monochromatic

#56191B #86272A #B53539 #CE595D #DC888B

Accessibility & contrast

On white

5.94

#B53539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B53539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53539

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53539	#FFFFFF	#000000	##FFFFFF
##B53539	1.00	5.94	3.53	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595238

Deuteranopia (green-blind)

#796E35

Tritanopia (blue-blind)

#C70A38

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b53539;
/* rgb */ color: rgb(181, 53, 57);
/* oklch */ color: oklch(52.2% 0.164 23.3);

Tailwind

colors: {
  custom: {
    50: '#d3756f',
    500: '#b53539',
    950: '#000000',
  },
}

SCSS

$custom: #b53539;
$custom-light: #d3756f;
$custom-dark: #000000;

JSON

{
  "hex": "#b53539",
  "rgb": {
    "r": 181,
    "g": 53,
    "b": 57
  },
  "hsl": {
    "h": 358.125,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52213,
    "c": 0.16432,
    "h": 23.3
  },
  "luminance": 0.12665
}

Semantic roles & 50–950 ramp

primary

#B53539

secondary

#80C6C4

accent

#DED94A

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B53539

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

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