#B53D2B#B53D2B

#B53D2B is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.159 H 31.3°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#B53D2B
RGB	rgb(181, 61, 43)
HSL	hsl(8, 62%, 44%)
HSV	hsv(8, 76%, 71%)
CMYK	cmyk(0%, 66.3%, 76.2%, 29%)
CIE-LAB	lab(43.27, 47.58, 37.14)
CIE-LCH	lch(43.27, 60.36, 37.98°)
OKLab	oklab(52.91% 0.1357 0.0824)
OKLCH	oklch(52.91% 0.159 31.3)
XYZ	xyz(21.1632, 13.3387, 3.7453)
Luminance	0.1334 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53D2B #2BA3B5

analogous

#B52B5E #B53D2B #B5822B

triadic

#B53D2B #2BB53D #3D2BB5

tetradic

#B53D2B #5EB52B #2BA3B5 #822BB5

square

#B53D2B #5EB52B #2BA3B5 #822BB5

split-complementary

#B53D2B #2BB582 #2B5EB5

monochromatic

#521C14 #842C1F #B53D2B #D45B49 #E0887B

Accessibility & contrast

On white

5.73

#B53D2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B53D2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53D2B

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53D2B	#FFFFFF	#000000	##FFFFFF
##B53D2B	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5628

Deuteranopia (green-blind)

#7D7027

Tritanopia (blue-blind)

#C71B3A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53d2b;
/* rgb */ color: rgb(181, 61, 43);
/* oklch */ color: oklch(52.9% 0.159 31.3);

Tailwind

colors: {
  custom: {
    50: '#d37965',
    500: '#b53d2b',
    950: '#000000',
  },
}

SCSS

$custom: #b53d2b;
$custom-light: #d37965;
$custom-dark: #000000;

JSON

{
  "hex": "#b53d2b",
  "rgb": {
    "r": 181,
    "g": 61,
    "b": 43
  },
  "hsl": {
    "h": 7.826,
    "s": 61.607,
    "l": 43.922
  },
  "oklch": {
    "l": 0.52911,
    "c": 0.1588,
    "h": 31.3
  },
  "luminance": 0.13336
}

Semantic roles & 50–950 ramp

primary

#B53D2B

secondary

#74BDC8

accent

#D0E543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53D2B

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

Preview Lab → · Contrast checker → · Palette generator →