#B52C3F#B52C3F

#B52C3F is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.5% C 0.172 H 18.4°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#B52C3F
RGB	rgb(181, 44, 63)
HSL	hsl(352, 61%, 44%)
HSV	hsv(352, 76%, 71%)
CMYK	cmyk(0%, 75.7%, 65.2%, 29%)
CIE-LAB	lab(41.20, 55.05, 22.86)
CIE-LCH	lch(41.20, 59.60, 22.55°)
OKLab	oklab(51.45% 0.1635 0.0545)
OKLCH	oklch(51.45% 0.172 18.4)
XYZ	xyz(20.8562, 11.9871, 5.9172)
Luminance	0.1198 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52C3F #2CB5A2

analogous

#B52C84 #B52C3F #B55E2C

triadic

#B52C3F #3FB52C #2C3FB5

tetradic

#B52C3F #84B52C #2CB5A2 #5E2CB5

square

#B52C3F #84B52C #2CB5A2 #5E2CB5

split-complementary

#B52C3F #2CB55E #2C84B5

monochromatic

#53141D #84202E #B52C3F #D34B5E #DF7C8A

Accessibility & contrast

On white

6.18

#B52C3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B52C3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52C3F

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52C3F	#FFFFFF	#000000	##FFFFFF
##B52C3F	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534F3F

Deuteranopia (green-blind)

#766C3B

Tritanopia (blue-blind)

#C70034

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52c3f;
/* rgb */ color: rgb(181, 44, 63);
/* oklch */ color: oklch(51.5% 0.172 18.4);

Tailwind

colors: {
  custom: {
    50: '#d37173',
    500: '#b52c3f',
    950: '#000000',
  },
}

SCSS

$custom: #b52c3f;
$custom-light: #d37173;
$custom-dark: #000000;

JSON

{
  "hex": "#b52c3f",
  "rgb": {
    "r": 181,
    "g": 44,
    "b": 63
  },
  "hsl": {
    "h": 351.679,
    "s": 60.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51453,
    "c": 0.17239,
    "h": 18.4
  },
  "luminance": 0.11984
}

Semantic roles & 50–950 ramp

primary

#B52C3F

secondary

#75C8BC

accent

#E4CE44

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160808

muted

#847B7B

Preview Lab

Preview with #B52C3F

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

Preview Lab → · Contrast checker → · Palette generator →