#B5302A#B5302A

#B5302A is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.171 H 27.6°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#B5302A
RGB	rgb(181, 48, 42)
HSL	hsl(3, 62%, 44%)
HSV	hsv(3, 77%, 71%)
CMYK	cmyk(0%, 73.5%, 76.8%, 29%)
CIE-LAB	lab(41.39, 52.66, 35.68)
CIE-LCH	lch(41.39, 63.61, 34.12°)
OKLab	oklab(51.5% 0.1514 0.079)
OKLCH	oklch(51.5% 0.171 27.6)
XYZ	xyz(20.5333, 12.1080, 3.4459)
Luminance	0.1211 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5302A #2AAFB5

analogous

#B52A69 #B5302A #B5752A

triadic

#B5302A #2AB530 #302AB5

tetradic

#B5302A #69B52A #2AAFB5 #752AB5

square

#B5302A #69B52A #2AAFB5 #752AB5

split-complementary

#B5302A #2AB575 #2A69B5

monochromatic

#521613 #83231E #B5302A #D44E48 #E07E79

Accessibility & contrast

On white

6.14

#B5302A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B5302A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5302A

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5302A	#FFFFFF	#000000	##FFFFFF
##B5302A	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F28

Deuteranopia (green-blind)

#796C25

Tritanopia (blue-blind)

#C70030

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b5302a;
/* rgb */ color: rgb(181, 48, 42);
/* oklch */ color: oklch(51.5% 0.171 27.6);

Tailwind

colors: {
  custom: {
    50: '#d47264',
    500: '#b5302a',
    950: '#000000',
  },
}

SCSS

$custom: #b5302a;
$custom-light: #d47264;
$custom-dark: #000000;

JSON

{
  "hex": "#b5302a",
  "rgb": {
    "r": 181,
    "g": 48,
    "b": 42
  },
  "hsl": {
    "h": 2.59,
    "s": 62.332,
    "l": 43.725
  },
  "oklch": {
    "l": 0.51498,
    "c": 0.17079,
    "h": 27.6
  },
  "luminance": 0.12105
}

Semantic roles & 50–950 ramp

primary

#B5302A

secondary

#73C4C8

accent

#DEE542

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B5302A

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

Preview Lab → · Contrast checker → · Palette generator →