#B4301C#B4301C

#B4301C is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.172 H 31.6°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#B4301C
RGB	rgb(180, 48, 28)
HSL	hsl(8, 73%, 41%)
HSV	hsv(8, 84%, 71%)
CMYK	cmyk(0%, 73.3%, 84.4%, 29.4%)
CIE-LAB	lab(41.06, 51.88, 42.79)
CIE-LCH	lch(41.06, 67.26, 39.52°)
OKLab	oklab(51.18% 0.1464 0.09)
OKLCH	oklch(51.18% 0.172 31.6)
XYZ	xyz(20.0914, 11.9042, 2.3382)
Luminance	0.1190 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4301C #1CA0B4

analogous

#B41C54 #B4301C #B47C1C

triadic

#B4301C #1CB430 #301CB4

tetradic

#B4301C #54B41C #1CA0B4 #7C1CB4

square

#B4301C #54B41C #1CA0B4 #7C1CB4

split-complementary

#B4301C #1CB47C #1C54B4

monochromatic

#4A140C #7F2214 #B4301C #DF462F #E77564

Accessibility & contrast

On white

6.21

#B4301C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B4301C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4301C

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4301C	#FFFFFF	#000000	##FFFFFF
##B4301C	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E18

Deuteranopia (green-blind)

#796B14

Tritanopia (blue-blind)

#C7002D

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b4301c;
/* rgb */ color: rgb(180, 48, 28);
/* oklch */ color: oklch(51.2% 0.172 31.6);

Tailwind

colors: {
  custom: {
    50: '#d4725b',
    500: '#b4301c',
    950: '#000000',
  },
}

SCSS

$custom: #b4301c;
$custom-light: #d4725b;
$custom-dark: #000000;

JSON

{
  "hex": "#b4301c",
  "rgb": {
    "r": 180,
    "g": 48,
    "b": 28
  },
  "hsl": {
    "h": 7.895,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.5118,
    "c": 0.17185,
    "h": 31.6
  },
  "luminance": 0.11901
}

Semantic roles & 50–950 ramp

primary

#B4301C

secondary

#60BECC

accent

#D8F038

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B4301C

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

Preview Lab → · Contrast checker → · Palette generator →