#B53E2B#B53E2B

#B53E2B is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.158 H 31.6°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#B53E2B
RGB	rgb(181, 62, 43)
HSL	hsl(8, 62%, 44%)
HSV	hsv(8, 76%, 71%)
CMYK	cmyk(0%, 65.7%, 76.2%, 29%)
CIE-LAB	lab(43.43, 47.15, 37.32)
CIE-LCH	lch(43.43, 60.13, 38.36°)
OKLab	oklab(53.03% 0.1344 0.0828)
OKLCH	oklch(53.03% 0.158 31.6)
XYZ	xyz(21.2171, 13.4465, 3.7633)
Luminance	0.1344 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53E2B #2BA2B5

analogous

#B52B5D #B53E2B #B5832B

triadic

#B53E2B #2BB53E #3E2BB5

tetradic

#B53E2B #5DB52B #2BA2B5 #832BB5

square

#B53E2B #5DB52B #2BA2B5 #832BB5

split-complementary

#B53E2B #2BB583 #2B5DB5

monochromatic

#521C14 #842D1F #B53E2B #D45C49 #E0897B

Accessibility & contrast

On white

5.69

#B53E2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B53E2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53E2B

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53E2B	#FFFFFF	#000000	##FFFFFF
##B53E2B	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605628

Deuteranopia (green-blind)

#7D7027

Tritanopia (blue-blind)

#C71D3A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b53e2b;
/* rgb */ color: rgb(181, 62, 43);
/* oklch */ color: oklch(53.0% 0.158 31.6);

Tailwind

colors: {
  custom: {
    50: '#d37965',
    500: '#b53e2b',
    950: '#000000',
  },
}

SCSS

$custom: #b53e2b;
$custom-light: #d37965;
$custom-dark: #000000;

JSON

{
  "hex": "#b53e2b",
  "rgb": {
    "r": 181,
    "g": 62,
    "b": 43
  },
  "hsl": {
    "h": 8.261,
    "s": 61.607,
    "l": 43.922
  },
  "oklch": {
    "l": 0.53031,
    "c": 0.15785,
    "h": 31.6
  },
  "luminance": 0.13443
}

Semantic roles & 50–950 ramp

primary

#B53E2B

secondary

#74BCC8

accent

#CEE543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53E2B

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

Preview Lab → · Contrast checker → · Palette generator →