#BB3F1C#BB3F1C

#BB3F1C is a mid, vivid red. Relative luminance 0.142; OKLCH L 54.0% C 0.166 H 35.8°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#BB3F1C
RGB	rgb(187, 63, 28)
HSL	hsl(13, 74%, 42%)
HSV	hsv(13, 85%, 73%)
CMYK	cmyk(0%, 66.3%, 85%, 26.7%)
CIE-LAB	lab(44.53, 48.33, 46.35)
CIE-LCH	lch(44.53, 66.96, 43.80°)
OKLab	oklab(54.02% 0.1348 0.0973)
OKLCH	oklch(54.02% 0.166 35.8)
XYZ	xyz(22.4832, 14.2070, 2.6567)
Luminance	0.1420 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3F1C #1C98BB

analogous

#BB1C48 #BB3F1C #BB8F1C

triadic

#BB3F1C #1CBB3F #3F1CBB

tetradic

#BB3F1C #48BB1C #1C98BB #8F1CBB

square

#BB3F1C #48BB1C #1C98BB #8F1CBB

split-complementary

#BB3F1C #1CBB8F #1C48BB

monochromatic

#511B0C #862D14 #BB3F1C #E15A34 #E98569

Accessibility & contrast

On white

5.47

#BB3F1C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#BB3F1C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3F1C

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3F1C	#FFFFFF	#000000	##FFFFFF
##BB3F1C	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635816

Deuteranopia (green-blind)

#827415

Tritanopia (blue-blind)

#CE1839

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #bb3f1c;
/* rgb */ color: rgb(187, 63, 28);
/* oklch */ color: oklch(54.0% 0.166 35.8);

Tailwind

colors: {
  custom: {
    50: '#d97a5c',
    500: '#bb3f1c',
    950: '#000000',
  },
}

SCSS

$custom: #bb3f1c;
$custom-light: #d97a5c;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3f1c",
  "rgb": {
    "r": 187,
    "g": 63,
    "b": 28
  },
  "hsl": {
    "h": 13.208,
    "s": 73.953,
    "l": 42.157
  },
  "oklch": {
    "l": 0.54016,
    "c": 0.16619,
    "h": 35.8
  },
  "luminance": 0.14204
}

Semantic roles & 50–950 ramp

primary

#BB3F1C

secondary

#65B7CE

accent

#C8F137

background

#FEF7F5

surface

#FDEEE9

border

#D5C9C5

text

#170A04

muted

#857C79

Preview Lab

Preview with #BB3F1C

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

Preview Lab → · Contrast checker → · Palette generator →