#B53F2F#B53F2F

#B53F2F is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.2% C 0.156 H 30.6°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#B53F2F
RGB	rgb(181, 63, 47)
HSL	hsl(7, 59%, 45%)
HSV	hsv(7, 74%, 71%)
CMYK	cmyk(0%, 65.2%, 74%, 29%)
CIE-LAB	lab(43.63, 46.89, 35.31)
CIE-LCH	lch(43.63, 58.70, 36.98°)
OKLab	oklab(53.2% 0.1344 0.0794)
OKLCH	oklch(53.2% 0.156 30.6)
XYZ	xyz(21.3490, 13.5871, 4.1872)
Luminance	0.1358 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53F2F #2FA5B5

analogous

#B52F62 #B53F2F #B5822F

triadic

#B53F2F #2FB53F #3F2FB5

tetradic

#B53F2F #62B52F #2FA5B5 #822FB5

square

#B53F2F #62B52F #2FA5B5 #822FB5

split-complementary

#B53F2F #2FB582 #2F62B5

monochromatic

#541D16 #842E22 #B53F2F #D15F50 #DE8C80

Accessibility & contrast

On white

5.65

#B53F2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B53F2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53F2F

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53F2F	#FFFFFF	#000000	##FFFFFF
##B53F2F	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60572D

Deuteranopia (green-blind)

#7D712B

Tritanopia (blue-blind)

#C7203C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b53f2f;
/* rgb */ color: rgb(181, 63, 47);
/* oklch */ color: oklch(53.2% 0.156 30.6);

Tailwind

colors: {
  custom: {
    50: '#d37a68',
    500: '#b53f2f',
    950: '#000000',
  },
}

SCSS

$custom: #b53f2f;
$custom-light: #d37a68;
$custom-dark: #000000;

JSON

{
  "hex": "#b53f2f",
  "rgb": {
    "r": 181,
    "g": 63,
    "b": 47
  },
  "hsl": {
    "h": 7.164,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.532,
    "c": 0.1561,
    "h": 30.6
  },
  "luminance": 0.13584
}

Semantic roles & 50–950 ramp

primary

#B53F2F

secondary

#79BEC7

accent

#CFE246

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B53F2F

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

Preview Lab → · Contrast checker → · Palette generator →