#B53B36#B53B36

#B53B36 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.8% C 0.159 H 26.4°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#B53B36
RGB	rgb(181, 59, 54)
HSL	hsl(2, 54%, 46%)
HSV	hsv(2, 70%, 71%)
CMYK	cmyk(0%, 67.4%, 70.2%, 29%)
CIE-LAB	lab(43.09, 48.93, 30.65)
CIE-LCH	lch(43.09, 57.74, 32.06°)
OKLab	oklab(52.82% 0.1422 0.0707)
OKLCH	oklch(52.82% 0.159 26.4)
XYZ	xyz(21.2881, 13.2211, 4.9203)
Luminance	0.1322 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53B36 #36B0B5

analogous

#B53670 #B53B36 #B57A36

triadic

#B53B36 #36B53B #3B36B5

tetradic

#B53B36 #70B536 #36B0B5 #7A36B5

square

#B53B36 #70B536 #36B0B5 #7A36B5

split-complementary

#B53B36 #36B57A #3670B5

monochromatic

#571C1A #862C28 #B53B36 #CE5F5A #DC8D89

Accessibility & contrast

On white

5.76

#B53B36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B53B36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53B36

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53B36	#FFFFFF	#000000	##FFFFFF
##B53B36	1.00	5.76	3.64	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5534

Deuteranopia (green-blind)

#7B7032

Tritanopia (blue-blind)

#C7193B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53b36;
/* rgb */ color: rgb(181, 59, 54);
/* oklch */ color: oklch(52.8% 0.159 26.4);

Tailwind

colors: {
  custom: {
    50: '#d3786d',
    500: '#b53b36',
    950: '#000000',
  },
}

SCSS

$custom: #b53b36;
$custom-light: #d3786d;
$custom-dark: #000000;

JSON

{
  "hex": "#b53b36",
  "rgb": {
    "r": 181,
    "g": 59,
    "b": 54
  },
  "hsl": {
    "h": 2.362,
    "s": 54.043,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52823,
    "c": 0.1588,
    "h": 26.4
  },
  "luminance": 0.13218
}

Semantic roles & 50–950 ramp

primary

#B53B36

secondary

#81C3C6

accent

#D8DD4A

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B53B36

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

Preview Lab → · Contrast checker → · Palette generator →