#B3381C#B3381C

#B3381C is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.8% C 0.164 H 34.1°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B3381C
RGB	rgb(179, 56, 28)
HSL	hsl(11, 73%, 41%)
HSV	hsv(11, 84%, 70%)
CMYK	cmyk(0%, 68.7%, 84.4%, 29.8%)
CIE-LAB	lab(42.00, 48.47, 43.56)
CIE-LCH	lch(42.00, 65.17, 41.95°)
OKLab	oklab(51.85% 0.1359 0.0919)
OKLCH	oklch(51.85% 0.164 34.1)
XYZ	xyz(20.2166, 12.4990, 2.4464)
Luminance	0.1250 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3381C #1C97B3

analogous

#B31C4B #B3381C #B3831C

triadic

#B3381C #1CB338 #381CB3

tetradic

#B3381C #4BB31C #1C97B3 #831CB3

square

#B3381C #4BB31C #1C97B3 #831CB3

split-complementary

#B3381C #1CB383 #1C4BB3

monochromatic

#49170B #7E2714 #B3381C #DE4F2E #E77B63

Accessibility & contrast

On white

6.00

#B3381C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B3381C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3381C

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3381C	#FFFFFF	#000000	##FFFFFF
##B3381C	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5217

Deuteranopia (green-blind)

#7B6D15

Tritanopia (blue-blind)

#C50A33

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b3381c;
/* rgb */ color: rgb(179, 56, 28);
/* oklch */ color: oklch(51.8% 0.164 34.1);

Tailwind

colors: {
  custom: {
    50: '#d3765b',
    500: '#b3381c',
    950: '#000000',
  },
}

SCSS

$custom: #b3381c;
$custom-light: #d3765b;
$custom-dark: #000000;

JSON

{
  "hex": "#b3381c",
  "rgb": {
    "r": 179,
    "g": 56,
    "b": 28
  },
  "hsl": {
    "h": 11.126,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.51846,
    "c": 0.16404,
    "h": 34.1
  },
  "luminance": 0.12496
}

Semantic roles & 50–950 ramp

primary

#B3381C

secondary

#5FB7CB

accent

#CEF038

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B3381C

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

Preview Lab → · Contrast checker → · Palette generator →