#B53F2C#B53F2C

#B53F2C is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.2% C 0.157 H 31.7°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#B53F2C
RGB	rgb(181, 63, 44)
HSL	hsl(8, 61%, 44%)
HSV	hsv(8, 76%, 71%)
CMYK	cmyk(0%, 65.2%, 75.7%, 29%)
CIE-LAB	lab(43.60, 46.76, 36.95)
CIE-LCH	lch(43.60, 59.60, 38.32°)
OKLab	oklab(53.16% 0.1334 0.0823)
OKLCH	oklch(53.16% 0.157 31.7)
XYZ	xyz(21.2905, 13.5637, 3.8794)
Luminance	0.1356 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53F2C #2CA2B5

analogous

#B52C5E #B53F2C #B5842C

triadic

#B53F2C #2CB53F #3F2CB5

tetradic

#B53F2C #5EB52C #2CA2B5 #842CB5

square

#B53F2C #5EB52C #2CA2B5 #842CB5

split-complementary

#B53F2C #2CB584 #2C5EB5

monochromatic

#531D14 #842E20 #B53F2C #D35E4B #DF8A7C

Accessibility & contrast

On white

5.66

#B53F2C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B53F2C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53F2C

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53F2C	#FFFFFF	#000000	##FFFFFF
##B53F2C	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605729

Deuteranopia (green-blind)

#7D7128

Tritanopia (blue-blind)

#C71F3B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b53f2c;
/* rgb */ color: rgb(181, 63, 44);
/* oklch */ color: oklch(53.2% 0.157 31.7);

Tailwind

colors: {
  custom: {
    50: '#d37a66',
    500: '#b53f2c',
    950: '#000000',
  },
}

SCSS

$custom: #b53f2c;
$custom-light: #d37a66;
$custom-dark: #000000;

JSON

{
  "hex": "#b53f2c",
  "rgb": {
    "r": 181,
    "g": 63,
    "b": 44
  },
  "hsl": {
    "h": 8.321,
    "s": 60.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.53163,
    "c": 0.15669,
    "h": 31.7
  },
  "luminance": 0.13561
}

Semantic roles & 50–950 ramp

primary

#B53F2C

secondary

#75BCC8

accent

#CEE444

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B53F2C

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

Preview Lab → · Contrast checker → · Palette generator →