#B52F3A#B52F3A

#B52F3A is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.6% C 0.170 H 21.3°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#B52F3A
RGB	rgb(181, 47, 58)
HSL	hsl(355, 59%, 45%)
HSV	hsv(355, 74%, 71%)
CMYK	cmyk(0%, 74%, 68%, 29%)
CIE-LAB	lab(41.48, 53.75, 26.29)
CIE-LCH	lch(41.48, 59.83, 26.07°)
OKLab	oklab(51.64% 0.1583 0.0616)
OKLCH	oklch(51.64% 0.17 21.3)
XYZ	xyz(20.8386, 12.1654, 5.2531)
Luminance	0.1216 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52F3A #2FB5AA

analogous

#B52F7D #B52F3A #B5672F

triadic

#B52F3A #3AB52F #2F3AB5

tetradic

#B52F3A #7DB52F #2FB5AA #672FB5

square

#B52F3A #7DB52F #2FB5AA #672FB5

split-complementary

#B52F3A #2FB567 #2F7DB5

monochromatic

#54161B #84222A #B52F3A #D1505A #DE8088

Accessibility & contrast

On white

6.12

#B52F3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B52F3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52F3A

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52F3A	#FFFFFF	#000000	##FFFFFF
##B52F3A	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555039

Deuteranopia (green-blind)

#776C36

Tritanopia (blue-blind)

#C70034

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b52f3a;
/* rgb */ color: rgb(181, 47, 58);
/* oklch */ color: oklch(51.6% 0.170 21.3);

Tailwind

colors: {
  custom: {
    50: '#d37270',
    500: '#b52f3a',
    950: '#000000',
  },
}

SCSS

$custom: #b52f3a;
$custom-light: #d37270;
$custom-dark: #000000;

JSON

{
  "hex": "#b52f3a",
  "rgb": {
    "r": 181,
    "g": 47,
    "b": 58
  },
  "hsl": {
    "h": 355.075,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51636,
    "c": 0.1699,
    "h": 21.3
  },
  "luminance": 0.12162
}

Semantic roles & 50–950 ramp

primary

#B52F3A

secondary

#79C7C1

accent

#E2D546

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B52F3A

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

Preview Lab → · Contrast checker → · Palette generator →