#B52F3F#B52F3F

#B52F3F is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.7% C 0.170 H 19.1°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#B52F3F
RGB	rgb(181, 47, 63)
HSL	hsl(353, 59%, 45%)
HSV	hsv(353, 74%, 71%)
CMYK	cmyk(0%, 74%, 65.2%, 29%)
CIE-LAB	lab(41.56, 54.03, 23.32)
CIE-LCH	lch(41.56, 58.85, 23.35°)
OKLab	oklab(51.73% 0.1603 0.0556)
OKLCH	oklch(51.73% 0.17 19.1)
XYZ	xyz(20.9720, 12.2188, 5.9558)
Luminance	0.1222 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52F3F #2FB5A5

analogous

#B52F82 #B52F3F #B5622F

triadic

#B52F3F #3FB52F #2F3FB5

tetradic

#B52F3F #82B52F #2FB5A5 #622FB5

square

#B52F3F #82B52F #2FB5A5 #622FB5

split-complementary

#B52F3F #2FB562 #2F82B5

monochromatic

#54161D #84222E #B52F3F #D1505F #DE808C

Accessibility & contrast

On white

6.10

#B52F3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B52F3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52F3F

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52F3F	#FFFFFF	#000000	##FFFFFF
##B52F3F	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55503F

Deuteranopia (green-blind)

#776C3B

Tritanopia (blue-blind)

#C70036

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b52f3f;
/* rgb */ color: rgb(181, 47, 63);
/* oklch */ color: oklch(51.7% 0.170 19.1);

Tailwind

colors: {
  custom: {
    50: '#d37274',
    500: '#b52f3f',
    950: '#000000',
  },
}

SCSS

$custom: #b52f3f;
$custom-light: #d37274;
$custom-dark: #000000;

JSON

{
  "hex": "#b52f3f",
  "rgb": {
    "r": 181,
    "g": 47,
    "b": 63
  },
  "hsl": {
    "h": 352.836,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51725,
    "c": 0.16963,
    "h": 19.1
  },
  "luminance": 0.12216
}

Semantic roles & 50–950 ramp

primary

#B52F3F

secondary

#79C7BE

accent

#E2CF46

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B52F3F

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

Preview Lab → · Contrast checker → · Palette generator →