#B53D33#B53D33

#B53D33 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.157 H 28.3°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#B53D33
RGB	rgb(181, 61, 51)
HSL	hsl(5, 56%, 45%)
HSV	hsv(5, 72%, 71%)
CMYK	cmyk(0%, 66.3%, 71.8%, 29%)
CIE-LAB	lab(43.36, 47.94, 32.72)
CIE-LCH	lch(43.36, 58.04, 34.31°)
OKLab	oklab(53.01% 0.1385 0.0746)
OKLCH	oklch(53.01% 0.157 28.3)
XYZ	xyz(21.3246, 13.4033, 4.5955)
Luminance	0.1340 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53D33 #33ABB5

analogous

#B5336A #B53D33 #B57E33

triadic

#B53D33 #33B53D #3D33B5

tetradic

#B53D33 #6AB533 #33ABB5 #7E33B5

square

#B53D33 #6AB533 #33ABB5 #7E33B5

split-complementary

#B53D33 #33B57E #336AB5

monochromatic

#561D18 #852D26 #B53D33 #CF5F56 #DD8C86

Accessibility & contrast

On white

5.71

#B53D33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B53D33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53D33

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53D33	#FFFFFF	#000000	##FFFFFF
##B53D33	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5631

Deuteranopia (green-blind)

#7C702F

Tritanopia (blue-blind)

#C71D3C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53d33;
/* rgb */ color: rgb(181, 61, 51);
/* oklch */ color: oklch(53.0% 0.157 28.3);

Tailwind

colors: {
  custom: {
    50: '#d3796b',
    500: '#b53d33',
    950: '#000000',
  },
}

SCSS

$custom: #b53d33;
$custom-light: #d3796b;
$custom-dark: #000000;

JSON

{
  "hex": "#b53d33",
  "rgb": {
    "r": 181,
    "g": 61,
    "b": 51
  },
  "hsl": {
    "h": 4.615,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.53013,
    "c": 0.15731,
    "h": 28.3
  },
  "luminance": 0.134
}

Semantic roles & 50–950 ramp

primary

#B53D33

secondary

#7DC1C6

accent

#D4DF48

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53D33

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

Preview Lab → · Contrast checker → · Palette generator →