#B52F23#B52F23

#B52F23 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.173 H 29.5°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#B52F23
RGB	rgb(181, 47, 35)
HSL	hsl(5, 68%, 42%)
HSV	hsv(5, 81%, 71%)
CMYK	cmyk(0%, 74%, 80.7%, 29%)
CIE-LAB	lab(41.19, 52.77, 39.36)
CIE-LCH	lch(41.19, 65.83, 36.72°)
OKLab	oklab(51.33% 0.1503 0.0849)
OKLCH	oklch(51.33% 0.173 29.5)
XYZ	xyz(20.3784, 11.9813, 2.8294)
Luminance	0.1198 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B52F23 #23A9B5

analogous

#B52360 #B52F23 #B57823

triadic

#B52F23 #23B52F #2F23B5

tetradic

#B52F23 #60B523 #23A9B5 #7823B5

square

#B52F23 #60B523 #23A9B5 #7823B5

split-complementary

#B52F23 #23B578 #2360B5

monochromatic

#4E140F #822219 #B52F23 #D9493C #E3796F

Accessibility & contrast

On white

6.18

#B52F23 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B52F23 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B52F23

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B52F23	#FFFFFF	#000000	##FFFFFF
##B52F23	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)

#584E20

Deuteranopia (green-blind)

#796C1D

Tritanopia (blue-blind)

#C8002E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b52f23;
/* rgb */ color: rgb(181, 47, 35);
/* oklch */ color: oklch(51.3% 0.173 29.5);

Tailwind

colors: {
  custom: {
    50: '#d4725f',
    500: '#b52f23',
    950: '#000000',
  },
}

SCSS

$custom: #b52f23;
$custom-light: #d4725f;
$custom-dark: #000000;

JSON

{
  "hex": "#b52f23",
  "rgb": {
    "r": 181,
    "g": 47,
    "b": 35
  },
  "hsl": {
    "h": 4.932,
    "s": 67.593,
    "l": 42.353
  },
  "oklch": {
    "l": 0.51325,
    "c": 0.17264,
    "h": 29.5
  },
  "luminance": 0.11978
}

Semantic roles & 50–950 ramp

primary

#B52F23

secondary

#6AC2CA

accent

#DCEA3D

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160805

muted

#847B79

Preview Lab

Preview with #B52F23

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

Preview Lab → · Contrast checker → · Palette generator →