#B53439#B53439

#B53439 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.165 H 23.0°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#B53439
RGB	rgb(181, 52, 57)
HSL	hsl(358, 55%, 46%)
HSV	hsv(358, 71%, 71%)
CMYK	cmyk(0%, 71.3%, 68.5%, 29%)
CIE-LAB	lab(42.12, 51.87, 27.69)
CIE-LCH	lch(42.12, 58.80, 28.09°)
OKLab	oklab(52.11% 0.1521 0.0646)
OKLCH	oklch(52.11% 0.165 23)
XYZ	xyz(21.0248, 12.5782, 5.1909)
Luminance	0.1258 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53439 #34B5B0

analogous

#B5347A #B53439 #B56F34

triadic

#B53439 #39B534 #3439B5

tetradic

#B53439 #7AB534 #34B5B0 #6F34B5

square

#B53439 #7AB534 #34B5B0 #6F34B5

split-complementary

#B53439 #34B56F #347AB5

monochromatic

#56191B #85262A #B53439 #CF575C #DC878A

Accessibility & contrast

On white

5.97

#B53439 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B53439 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53439

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53439	#FFFFFF	#000000	##FFFFFF
##B53439	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585238

Deuteranopia (green-blind)

#796E35

Tritanopia (blue-blind)

#C70637

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b53439;
/* rgb */ color: rgb(181, 52, 57);
/* oklch */ color: oklch(52.1% 0.165 23.0);

Tailwind

colors: {
  custom: {
    50: '#d3746f',
    500: '#b53439',
    950: '#000000',
  },
}

SCSS

$custom: #b53439;
$custom-light: #d3746f;
$custom-dark: #000000;

JSON

{
  "hex": "#b53439",
  "rgb": {
    "r": 181,
    "g": 52,
    "b": 57
  },
  "hsl": {
    "h": 357.674,
    "s": 55.365,
    "l": 45.686
  },
  "oklch": {
    "l": 0.5211,
    "c": 0.16529,
    "h": 23
  },
  "luminance": 0.12575
}

Semantic roles & 50–950 ramp

primary

#B53439

secondary

#7FC6C4

accent

#DFD949

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B53439

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

Preview Lab → · Contrast checker → · Palette generator →