#B53C31#B53C31

#B53C31 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.159 H 28.7°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#B53C31
RGB	rgb(181, 60, 49)
HSL	hsl(5, 57%, 45%)
HSV	hsv(5, 73%, 71%)
CMYK	cmyk(0%, 66.9%, 72.9%, 29%)
CIE-LAB	lab(43.18, 48.27, 33.66)
CIE-LCH	lch(43.18, 58.85, 34.89°)
OKLab	oklab(52.87% 0.1391 0.0763)
OKLCH	oklch(52.87% 0.159 28.7)
XYZ	xyz(21.2286, 13.2803, 4.3507)
Luminance	0.1328 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53C31 #31AAB5

analogous

#B53168 #B53C31 #B57E31

triadic

#B53C31 #31B53C #3C31B5

tetradic

#B53C31 #68B531 #31AAB5 #7E31B5

square

#B53C31 #68B531 #31AAB5 #7E31B5

split-complementary

#B53C31 #31B57E #3168B5

monochromatic

#551C17 #852C24 #B53C31 #D05D53 #DD8B83

Accessibility & contrast

On white

5.74

#B53C31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B53C31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53C31

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53C31	#FFFFFF	#000000	##FFFFFF
##B53C31	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)

#5E552F

Deuteranopia (green-blind)

#7C702D

Tritanopia (blue-blind)

#C71A3A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53c31;
/* rgb */ color: rgb(181, 60, 49);
/* oklch */ color: oklch(52.9% 0.159 28.7);

Tailwind

colors: {
  custom: {
    50: '#d3786a',
    500: '#b53c31',
    950: '#000000',
  },
}

SCSS

$custom: #b53c31;
$custom-light: #d3786a;
$custom-dark: #000000;

JSON

{
  "hex": "#b53c31",
  "rgb": {
    "r": 181,
    "g": 60,
    "b": 49
  },
  "hsl": {
    "h": 5,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.52868,
    "c": 0.15863,
    "h": 28.7
  },
  "luminance": 0.13277
}

Semantic roles & 50–950 ramp

primary

#B53C31

secondary

#7BC0C7

accent

#D4E147

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53C31

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

Preview Lab → · Contrast checker → · Palette generator →