#B4301A#B4301A

#B4301A is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.172 H 32.1°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#B4301A
RGB	rgb(180, 48, 26)
HSL	hsl(9, 75%, 40%)
HSV	hsv(9, 86%, 71%)
CMYK	cmyk(0%, 73.3%, 85.6%, 29.4%)
CIE-LAB	lab(41.05, 51.83, 43.75)
CIE-LCH	lch(41.05, 67.83, 40.17°)
OKLab	oklab(51.16% 0.1459 0.0914)
OKLCH	oklch(51.16% 0.172 32.1)
XYZ	xyz(20.0682, 11.8949, 2.2164)
Luminance	0.1189 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4301A #1A9EB4

analogous

#B41A51 #B4301A #B47D1A

triadic

#B4301A #1AB430 #301AB4

tetradic

#B4301A #51B41A #1A9EB4 #7D1AB4

square

#B4301A #51B41A #1A9EB4 #7D1AB4

split-complementary

#B4301A #1AB47D #1A51B4

monochromatic

#49130B #7F2212 #B4301A #E0452B #E87460

Accessibility & contrast

On white

6.22

#B4301A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B4301A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4301A

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4301A	#FFFFFF	#000000	##FFFFFF
##B4301A	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E15

Deuteranopia (green-blind)

#796B12

Tritanopia (blue-blind)

#C7002D

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b4301a;
/* rgb */ color: rgb(180, 48, 26);
/* oklch */ color: oklch(51.2% 0.172 32.1);

Tailwind

colors: {
  custom: {
    50: '#d4725a',
    500: '#b4301a',
    950: '#000000',
  },
}

SCSS

$custom: #b4301a;
$custom-light: #d4725a;
$custom-dark: #000000;

JSON

{
  "hex": "#b4301a",
  "rgb": {
    "r": 180,
    "g": 48,
    "b": 26
  },
  "hsl": {
    "h": 8.571,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.51164,
    "c": 0.17214,
    "h": 32.1
  },
  "luminance": 0.11892
}

Semantic roles & 50–950 ramp

primary

#B4301A

secondary

#5DBDCC

accent

#D7F136

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B4301A

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

Preview Lab → · Contrast checker → · Palette generator →