#B3301E#B3301E

#B3301E is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.0% C 0.171 H 31.1°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#B3301E
RGB	rgb(179, 48, 30)
HSL	hsl(7, 71%, 41%)
HSV	hsv(7, 83%, 70%)
CMYK	cmyk(0%, 73.2%, 83.2%, 29.8%)
CIE-LAB	lab(40.89, 51.61, 41.56)
CIE-LCH	lch(40.89, 66.27, 38.84°)
OKLab	oklab(51.02% 0.146 0.0881)
OKLCH	oklch(51.02% 0.171 31.1)
XYZ	xyz(19.8841, 11.7945, 2.4576)
Luminance	0.1179 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3301E #1EA1B3

analogous

#B31E56 #B3301E #B37A1E

triadic

#B3301E #1EB330 #301EB3

tetradic

#B3301E #56B31E #1EA1B3 #7A1EB3

square

#B3301E #56B31E #1EA1B3 #7A1EB3

split-complementary

#B3301E #1EB37A #1E56B3

monochromatic

#4A140C #7F2215 #B3301E #DD4632 #E57566

Accessibility & contrast

On white

6.25

#B3301E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#B3301E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3301E

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3301E	#FFFFFF	#000000	##FFFFFF
##B3301E	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E1A

Deuteranopia (green-blind)

#786B17

Tritanopia (blue-blind)

#C5002D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b3301e;
/* rgb */ color: rgb(179, 48, 30);
/* oklch */ color: oklch(51.0% 0.171 31.1);

Tailwind

colors: {
  custom: {
    50: '#d3725c',
    500: '#b3301e',
    950: '#000000',
  },
}

SCSS

$custom: #b3301e;
$custom-light: #d3725c;
$custom-dark: #000000;

JSON

{
  "hex": "#b3301e",
  "rgb": {
    "r": 179,
    "g": 48,
    "b": 30
  },
  "hsl": {
    "h": 7.248,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.51019,
    "c": 0.17055,
    "h": 31.1
  },
  "luminance": 0.11791
}

Semantic roles & 50–950 ramp

primary

#B3301E

secondary

#62BECB

accent

#D8EE3A

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3301E

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

Preview Lab → · Contrast checker → · Palette generator →