#B52E2E#B52E2E

#B52E2E is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.4% C 0.172 H 25.7°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#B52E2E
RGB	rgb(181, 46, 46)
HSL	hsl(0, 59%, 45%)
HSV	hsv(0, 75%, 71%)
CMYK	cmyk(0%, 74.6%, 74.6%, 29%)
CIE-LAB	lab(41.18, 53.52, 33.14)
CIE-LCH	lch(41.18, 62.95, 31.77°)
OKLab	oklab(51.36% 0.155 0.0745)
OKLCH	oklch(51.36% 0.172 25.7)
XYZ	xyz(20.5286, 11.9782, 3.8153)
Luminance	0.1197 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52E2E #2EB5B5

analogous

#B52E72 #B52E2E #B5722E

triadic

#B52E2E #2EB52E #2E2EB5

tetradic

#B52E2E #72B52E #2EB5B5 #722EB5

square

#B52E2E #72B52E #2EB5B5 #722EB5

split-complementary

#B52E2E #2EB572 #2E72B5

monochromatic

#531515 #842222 #B52E2E #D24E4E #DE7F7F

Accessibility & contrast

On white

6.19

#B52E2E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B52E2E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52E2E

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52E2E	#FFFFFF	#000000	##FFFFFF
##B52E2E	1.00	6.19	3.40	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564E2C

Deuteranopia (green-blind)

#786C29

Tritanopia (blue-blind)

#C70030

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52e2e;
/* rgb */ color: rgb(181, 46, 46);
/* oklch */ color: oklch(51.4% 0.172 25.7);

Tailwind

colors: {
  custom: {
    50: '#d47167',
    500: '#b52e2e',
    950: '#000000',
  },
}

SCSS

$custom: #b52e2e;
$custom-light: #d47167;
$custom-dark: #000000;

JSON

{
  "hex": "#b52e2e",
  "rgb": {
    "r": 181,
    "g": 46,
    "b": 46
  },
  "hsl": {
    "h": 0,
    "s": 59.471,
    "l": 44.51
  },
  "oklch": {
    "l": 0.5136,
    "c": 0.17196,
    "h": 25.7
  },
  "luminance": 0.11975
}

Semantic roles & 50–950 ramp

primary

#B52E2E

secondary

#78C7C7

accent

#E3E345

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B52E2E

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

Preview Lab → · Contrast checker → · Palette generator →