#B53F2B#B53F2B

#B53F2B is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.2% C 0.157 H 32.0°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#B53F2B
RGB	rgb(181, 63, 43)
HSL	hsl(9, 62%, 44%)
HSV	hsv(9, 76%, 71%)
CMYK	cmyk(0%, 65.2%, 76.2%, 29%)
CIE-LAB	lab(43.59, 46.72, 37.49)
CIE-LCH	lch(43.59, 59.90, 38.74°)
OKLab	oklab(53.15% 0.133 0.0832)
OKLCH	oklch(53.15% 0.157 32)
XYZ	xyz(21.2719, 13.5563, 3.7815)
Luminance	0.1355 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53F2B #2BA1B5

analogous

#B52B5C #B53F2B #B5842B

triadic

#B53F2B #2BB53F #3F2BB5

tetradic

#B53F2B #5CB52B #2BA1B5 #842BB5

square

#B53F2B #5CB52B #2BA1B5 #842BB5

split-complementary

#B53F2B #2BB584 #2B5CB5

monochromatic

#521D14 #842E1F #B53F2B #D45D49 #E0897B

Accessibility & contrast

On white

5.66

#B53F2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B53F2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53F2B

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53F2B	#FFFFFF	#000000	##FFFFFF
##B53F2B	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)

#605728

Deuteranopia (green-blind)

#7E7127

Tritanopia (blue-blind)

#C71F3B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b53f2b;
/* rgb */ color: rgb(181, 63, 43);
/* oklch */ color: oklch(53.2% 0.157 32.0);

Tailwind

colors: {
  custom: {
    50: '#d37a65',
    500: '#b53f2b',
    950: '#000000',
  },
}

SCSS

$custom: #b53f2b;
$custom-light: #d37a65;
$custom-dark: #000000;

JSON

{
  "hex": "#b53f2b",
  "rgb": {
    "r": 181,
    "g": 63,
    "b": 43
  },
  "hsl": {
    "h": 8.696,
    "s": 61.607,
    "l": 43.922
  },
  "oklch": {
    "l": 0.53152,
    "c": 0.1569,
    "h": 32
  },
  "luminance": 0.13553
}

Semantic roles & 50–950 ramp

primary

#B53F2B

secondary

#74BCC8

accent

#CDE543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B53F2B

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

Preview Lab → · Contrast checker → · Palette generator →