#B52F31#B52F31

#B52F31 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.171 H 24.8°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#B52F31
RGB	rgb(181, 47, 49)
HSL	hsl(359, 59%, 45%)
HSV	hsv(359, 74%, 71%)
CMYK	cmyk(0%, 74%, 72.9%, 29%)
CIE-LAB	lab(41.35, 53.30, 31.56)
CIE-LCH	lch(41.35, 61.95, 30.63°)
OKLab	oklab(51.5% 0.155 0.0717)
OKLCH	oklch(51.5% 0.171 24.8)
XYZ	xyz(20.6293, 12.0817, 4.1509)
Luminance	0.1208 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52F31 #2FB5B3

analogous

#B52F74 #B52F31 #B5702F

triadic

#B52F31 #31B52F #2F31B5

tetradic

#B52F31 #74B52F #2FB5B3 #702FB5

square

#B52F31 #74B52F #2FB5B3 #702FB5

split-complementary

#B52F31 #2FB570 #2F74B5

monochromatic

#541617 #842224 #B52F31 #D15052 #DE8082

Accessibility & contrast

On white

6.15

#B52F31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B52F31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52F31

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52F31	#FFFFFF	#000000	##FFFFFF
##B52F31	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564F30

Deuteranopia (green-blind)

#786C2C

Tritanopia (blue-blind)

#C70031

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52f31;
/* rgb */ color: rgb(181, 47, 49);
/* oklch */ color: oklch(51.5% 0.171 24.8);

Tailwind

colors: {
  custom: {
    50: '#d47269',
    500: '#b52f31',
    950: '#000000',
  },
}

SCSS

$custom: #b52f31;
$custom-light: #d47269;
$custom-dark: #000000;

JSON

{
  "hex": "#b52f31",
  "rgb": {
    "r": 181,
    "g": 47,
    "b": 49
  },
  "hsl": {
    "h": 359.104,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51495,
    "c": 0.17074,
    "h": 24.8
  },
  "luminance": 0.12079
}

Semantic roles & 50–950 ramp

primary

#B52F31

secondary

#79C7C6

accent

#E2E046

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B52F31

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

Preview Lab → · Contrast checker → · Palette generator →