#B3301C#B3301C

#B3301C is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.0% C 0.171 H 31.6°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#B3301C
RGB	rgb(179, 48, 28)
HSL	hsl(8, 73%, 41%)
HSV	hsv(8, 84%, 70%)
CMYK	cmyk(0%, 73.2%, 84.4%, 29.8%)
CIE-LAB	lab(40.87, 51.56, 42.55)
CIE-LCH	lch(40.87, 66.85, 39.53°)
OKLab	oklab(51% 0.1455 0.0896)
OKLCH	oklch(51% 0.171 31.6)
XYZ	xyz(19.8594, 11.7846, 2.3274)
Luminance	0.1178 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3301C #1C9FB3

analogous

#B31C53 #B3301C #B37B1C

triadic

#B3301C #1CB330 #301CB3

tetradic

#B3301C #53B31C #1C9FB3 #7B1CB3

square

#B3301C #53B31C #1C9FB3 #7B1CB3

split-complementary

#B3301C #1CB37B #1C53B3

monochromatic

#49140B #7E2214 #B3301C #DE452E #E77463

Accessibility & contrast

On white

6.26

#B3301C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#B3301C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3301C

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3301C	#FFFFFF	#000000	##FFFFFF
##B3301C	1.00	6.26	3.36	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E18

Deuteranopia (green-blind)

#786B14

Tritanopia (blue-blind)

#C6002D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b3301c;
/* rgb */ color: rgb(179, 48, 28);
/* oklch */ color: oklch(51.0% 0.171 31.6);

Tailwind

colors: {
  custom: {
    50: '#d3725b',
    500: '#b3301c',
    950: '#000000',
  },
}

SCSS

$custom: #b3301c;
$custom-light: #d3725b;
$custom-dark: #000000;

JSON

{
  "hex": "#b3301c",
  "rgb": {
    "r": 179,
    "g": 48,
    "b": 28
  },
  "hsl": {
    "h": 7.947,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.51002,
    "c": 0.17085,
    "h": 31.6
  },
  "luminance": 0.11781
}

Semantic roles & 50–950 ramp

primary

#B3301C

secondary

#5FBDCB

accent

#D7F038

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3301C

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

Preview Lab → · Contrast checker → · Palette generator →