#B52F2F#B52F2F

#B52F2F is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.171 H 25.6°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#B52F2F
RGB	rgb(181, 47, 47)
HSL	hsl(0, 59%, 45%)
HSV	hsv(0, 74%, 71%)
CMYK	cmyk(0%, 74%, 74%, 29%)
CIE-LAB	lab(41.32, 53.21, 32.71)
CIE-LCH	lch(41.32, 62.46, 31.58°)
OKLab	oklab(51.47% 0.1542 0.0738)
OKLCH	oklch(51.47% 0.171 25.6)
XYZ	xyz(20.5880, 12.0652, 3.9335)
Luminance	0.1206 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52F2F #2FB5B5

analogous

#B52F72 #B52F2F #B5722F

triadic

#B52F2F #2FB52F #2F2FB5

tetradic

#B52F2F #72B52F #2FB5B5 #722FB5

square

#B52F2F #72B52F #2FB5B5 #722FB5

split-complementary

#B52F2F #2FB572 #2F72B5

monochromatic

#541616 #842222 #B52F2F #D15050 #DE8080

Accessibility & contrast

On white

6.15

#B52F2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B52F2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52F2F

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52F2F	#FFFFFF	#000000	##FFFFFF
##B52F2F	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F2D

Deuteranopia (green-blind)

#786C2A

Tritanopia (blue-blind)

#C70031

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52f2f;
/* rgb */ color: rgb(181, 47, 47);
/* oklch */ color: oklch(51.5% 0.171 25.6);

Tailwind

colors: {
  custom: {
    50: '#d47268',
    500: '#b52f2f',
    950: '#000000',
  },
}

SCSS

$custom: #b52f2f;
$custom-light: #d47268;
$custom-dark: #000000;

JSON

{
  "hex": "#b52f2f",
  "rgb": {
    "r": 181,
    "g": 47,
    "b": 47
  },
  "hsl": {
    "h": 0,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51467,
    "c": 0.17098,
    "h": 25.6
  },
  "luminance": 0.12062
}

Semantic roles & 50–950 ramp

primary

#B52F2F

secondary

#79C7C7

accent

#E2E246

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B52F2F

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

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