#BB3E1B#BB3E1B

#BB3E1B is a mid, vivid red. Relative luminance 0.141; OKLCH L 53.9% C 0.167 H 35.7°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#BB3E1B
RGB	rgb(187, 62, 27)
HSL	hsl(13, 75%, 42%)
HSV	hsv(13, 86%, 73%)
CMYK	cmyk(0%, 66.8%, 85.6%, 26.7%)
CIE-LAB	lab(44.37, 48.73, 46.66)
CIE-LCH	lch(44.37, 67.46, 43.76°)
OKLab	oklab(53.89% 0.1358 0.0976)
OKLCH	oklch(53.89% 0.167 35.7)
XYZ	xyz(22.4166, 14.0925, 2.5765)
Luminance	0.1409 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3E1B #1B98BB

analogous

#BB1B48 #BB3E1B #BB8E1B

triadic

#BB3E1B #1BBB3E #3E1BBB

tetradic

#BB3E1B #48BB1B #1B98BB #8E1BBB

square

#BB3E1B #48BB1B #1B98BB #8E1BBB

split-complementary

#BB3E1B #1BBB8E #1B48BB

monochromatic

#501B0C #862C13 #BB3E1B #E15832 #E98467

Accessibility & contrast

On white

5.50

#BB3E1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#BB3E1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3E1B

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3E1B	#FFFFFF	#000000	##FFFFFF
##BB3E1B	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635715

Deuteranopia (green-blind)

#827314

Tritanopia (blue-blind)

#CE1538

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #bb3e1b;
/* rgb */ color: rgb(187, 62, 27);
/* oklch */ color: oklch(53.9% 0.167 35.7);

Tailwind

colors: {
  custom: {
    50: '#d97a5b',
    500: '#bb3e1b',
    950: '#000000',
  },
}

SCSS

$custom: #bb3e1b;
$custom-light: #d97a5b;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3e1b",
  "rgb": {
    "r": 187,
    "g": 62,
    "b": 27
  },
  "hsl": {
    "h": 13.125,
    "s": 74.766,
    "l": 41.961
  },
  "oklch": {
    "l": 0.53891,
    "c": 0.16723,
    "h": 35.7
  },
  "luminance": 0.14089
}

Semantic roles & 50–950 ramp

primary

#BB3E1B

secondary

#63B7CE

accent

#C8F136

background

#FEF7F5

surface

#FDEEE9

border

#D5C9C5

text

#170A04

muted

#857C79

Preview Lab

Preview with #BB3E1B

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

Preview Lab → · Contrast checker → · Palette generator →