#B4302A#B4302A

#B4302A is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.170 H 27.5°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#B4302A
RGB	rgb(180, 48, 42)
HSL	hsl(3, 62%, 44%)
HSV	hsv(3, 77%, 71%)
CMYK	cmyk(0%, 73.3%, 76.7%, 29.4%)
CIE-LAB	lab(41.20, 52.34, 35.42)
CIE-LCH	lch(41.20, 63.20, 34.09°)
OKLab	oklab(51.32% 0.1505 0.0785)
OKLCH	oklch(51.32% 0.17 27.5)
XYZ	xyz(20.2996, 11.9875, 3.4350)
Luminance	0.1198 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4302A #2AAEB4

analogous

#B42A69 #B4302A #B4752A

triadic

#B4302A #2AB430 #302AB4

tetradic

#B4302A #69B42A #2AAEB4 #752AB4

square

#B4302A #69B42A #2AAEB4 #752AB4

split-complementary

#B4302A #2AB475 #2A69B4

monochromatic

#511613 #82231E #B4302A #D44D47 #E07D79

Accessibility & contrast

On white

6.18

#B4302A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B4302A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4302A

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4302A	#FFFFFF	#000000	##FFFFFF
##B4302A	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)

#574F28

Deuteranopia (green-blind)

#786C25

Tritanopia (blue-blind)

#C60030

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b4302a;
/* rgb */ color: rgb(180, 48, 42);
/* oklch */ color: oklch(51.3% 0.170 27.5);

Tailwind

colors: {
  custom: {
    50: '#d37264',
    500: '#b4302a',
    950: '#000000',
  },
}

SCSS

$custom: #b4302a;
$custom-light: #d37264;
$custom-dark: #000000;

JSON

{
  "hex": "#b4302a",
  "rgb": {
    "r": 180,
    "g": 48,
    "b": 42
  },
  "hsl": {
    "h": 2.609,
    "s": 62.162,
    "l": 43.529
  },
  "oklch": {
    "l": 0.51321,
    "c": 0.16977,
    "h": 27.5
  },
  "luminance": 0.11984
}

Semantic roles & 50–950 ramp

primary

#B4302A

secondary

#72C4C8

accent

#DEE543

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B4302A

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

Preview Lab → · Contrast checker → · Palette generator →