#B53136#B53136

#B53136 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.8% C 0.168 H 23.4°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#B53136
RGB	rgb(181, 49, 54)
HSL	hsl(358, 57%, 45%)
HSV	hsv(358, 73%, 71%)
CMYK	cmyk(0%, 72.9%, 70.2%, 29%)
CIE-LAB	lab(41.67, 52.83, 28.96)
CIE-LCH	lch(41.67, 60.24, 28.73°)
OKLab	oklab(51.76% 0.1545 0.0669)
OKLCH	oklch(51.76% 0.168 23.4)
XYZ	xyz(20.8225, 12.2899, 4.7651)
Luminance	0.1229 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53136 #31B5B0

analogous

#B53178 #B53136 #B56E31

triadic

#B53136 #36B531 #3136B5

tetradic

#B53136 #78B531 #31B5B0 #6E31B5

square

#B53136 #78B531 #31B5B0 #6E31B5

split-complementary

#B53136 #31B56E #3178B5

monochromatic

#551719 #852428 #B53136 #D05358 #DD8386

Accessibility & contrast

On white

6.07

#B53136 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B53136 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53136

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53136	#FFFFFF	#000000	##FFFFFF
##B53136	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575035

Deuteranopia (green-blind)

#786D32

Tritanopia (blue-blind)

#C70034

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b53136;
/* rgb */ color: rgb(181, 49, 54);
/* oklch */ color: oklch(51.8% 0.168 23.4);

Tailwind

colors: {
  custom: {
    50: '#d3736d',
    500: '#b53136',
    950: '#000000',
  },
}

SCSS

$custom: #b53136;
$custom-light: #d3736d;
$custom-dark: #000000;

JSON

{
  "hex": "#b53136",
  "rgb": {
    "r": 181,
    "g": 49,
    "b": 54
  },
  "hsl": {
    "h": 357.727,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51761,
    "c": 0.1684,
    "h": 23.4
  },
  "luminance": 0.12287
}

Semantic roles & 50–950 ramp

primary

#B53136

secondary

#7BC7C4

accent

#E1DB47

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B53136

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

Preview Lab → · Contrast checker → · Palette generator →