#B3301D#B3301D

#B3301D is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.0% C 0.171 H 31.4°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#B3301D
RGB	rgb(179, 48, 29)
HSL	hsl(8, 72%, 41%)
HSV	hsv(8, 84%, 70%)
CMYK	cmyk(0%, 73.2%, 83.8%, 29.8%)
CIE-LAB	lab(40.88, 51.59, 42.06)
CIE-LCH	lch(40.88, 66.56, 39.19°)
OKLab	oklab(51.01% 0.1457 0.0889)
OKLCH	oklch(51.01% 0.171 31.4)
XYZ	xyz(19.8715, 11.7894, 2.3914)
Luminance	0.1179 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3301D #1DA0B3

analogous

#B31D55 #B3301D #B37B1D

triadic

#B3301D #1DB330 #301DB3

tetradic

#B3301D #55B31D #1DA0B3 #7B1DB3

square

#B3301D #55B31D #1DA0B3 #7B1DB3

split-complementary

#B3301D #1DB37B #1D55B3

monochromatic

#4A140C #7E2214 #B3301D #DD4630 #E67564

Accessibility & contrast

On white

6.26

#B3301D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#B3301D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3301D

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3301D	#FFFFFF	#000000	##FFFFFF
##B3301D	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)

#584E19

Deuteranopia (green-blind)

#786B16

Tritanopia (blue-blind)

#C5002D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b3301d;
/* rgb */ color: rgb(179, 48, 29);
/* oklch */ color: oklch(51.0% 0.171 31.4);

Tailwind

colors: {
  custom: {
    50: '#d3725b',
    500: '#b3301d',
    950: '#000000',
  },
}

SCSS

$custom: #b3301d;
$custom-light: #d3725b;
$custom-dark: #000000;

JSON

{
  "hex": "#b3301d",
  "rgb": {
    "r": 179,
    "g": 48,
    "b": 29
  },
  "hsl": {
    "h": 7.6,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.5101,
    "c": 0.17069,
    "h": 31.4
  },
  "luminance": 0.11786
}

Semantic roles & 50–950 ramp

primary

#B3301D

secondary

#61BECB

accent

#D8EF39

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3301D

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

Preview Lab → · Contrast checker → · Palette generator →