#B53C33#B53C33

#B53C33 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.158 H 28.0°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#B53C33
RGB	rgb(181, 60, 51)
HSL	hsl(4, 56%, 45%)
HSV	hsv(4, 72%, 71%)
CMYK	cmyk(0%, 66.9%, 71.8%, 29%)
CIE-LAB	lab(43.21, 48.36, 32.54)
CIE-LCH	lch(43.21, 58.29, 33.93°)
OKLab	oklab(52.9% 0.1398 0.0742)
OKLCH	oklch(52.9% 0.158 28)
XYZ	xyz(21.2717, 13.2976, 4.5779)
Luminance	0.1329 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53C33 #33ACB5

analogous

#B5336B #B53C33 #B57D33

triadic

#B53C33 #33B53C #3C33B5

tetradic

#B53C33 #6BB533 #33ACB5 #7D33B5

square

#B53C33 #6BB533 #33ACB5 #7D33B5

split-complementary

#B53C33 #33B57D #336BB5

monochromatic

#561C18 #852C26 #B53C33 #CF5E56 #DD8C86

Accessibility & contrast

On white

5.74

#B53C33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B53C33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53C33

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53C33	#FFFFFF	#000000	##FFFFFF
##B53C33	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5531

Deuteranopia (green-blind)

#7C702F

Tritanopia (blue-blind)

#C71B3B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53c33;
/* rgb */ color: rgb(181, 60, 51);
/* oklch */ color: oklch(52.9% 0.158 28.0);

Tailwind

colors: {
  custom: {
    50: '#d3786b',
    500: '#b53c33',
    950: '#000000',
  },
}

SCSS

$custom: #b53c33;
$custom-light: #d3786b;
$custom-dark: #000000;

JSON

{
  "hex": "#b53c33",
  "rgb": {
    "r": 181,
    "g": 60,
    "b": 51
  },
  "hsl": {
    "h": 4.154,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52896,
    "c": 0.15829,
    "h": 28
  },
  "luminance": 0.13294
}

Semantic roles & 50–950 ramp

primary

#B53C33

secondary

#7DC1C6

accent

#D5DF48

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53C33

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

Preview Lab → · Contrast checker → · Palette generator →