#BB321F#BB321F

#BB321F is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.6% C 0.177 H 31.2°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#BB321F
RGB	rgb(187, 50, 31)
HSL	hsl(7, 72%, 43%)
HSV	hsv(7, 83%, 73%)
CMYK	cmyk(0%, 73.3%, 83.4%, 26.7%)
CIE-LAB	lab(42.69, 53.50, 43.27)
CIE-LCH	lch(42.69, 68.81, 38.97°)
OKLab	oklab(52.64% 0.1513 0.0915)
OKLCH	oklch(52.64% 0.177 31.2)
XYZ	xyz(21.8841, 12.9484, 2.6431)
Luminance	0.1295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB321F #1FA8BB

analogous

#BB1F5A #BB321F #BB801F

triadic

#BB321F #1FBB32 #321FBB

tetradic

#BB321F #5ABB1F #1FA8BB #801FBB

square

#BB321F #5ABB1F #1FA8BB #801FBB

split-complementary

#BB321F #1FBB80 #1F5ABB

monochromatic

#52160E #872416 #BB321F #DE4D39 #E77C6E

Accessibility & contrast

On white

5.85

#BB321F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#BB321F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB321F

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB321F	#FFFFFF	#000000	##FFFFFF
##BB321F	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C521B

Deuteranopia (green-blind)

#7E7017

Tritanopia (blue-blind)

#CE002F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #bb321f;
/* rgb */ color: rgb(187, 50, 31);
/* oklch */ color: oklch(52.6% 0.177 31.2);

Tailwind

colors: {
  custom: {
    50: '#d9745d',
    500: '#bb321f',
    950: '#000000',
  },
}

SCSS

$custom: #bb321f;
$custom-light: #d9745d;
$custom-dark: #000000;

JSON

{
  "hex": "#bb321f",
  "rgb": {
    "r": 187,
    "g": 50,
    "b": 31
  },
  "hsl": {
    "h": 7.308,
    "s": 71.56,
    "l": 42.745
  },
  "oklch": {
    "l": 0.52641,
    "c": 0.17677,
    "h": 31.2
  },
  "luminance": 0.12945
}

Semantic roles & 50–950 ramp

primary

#BB321F

secondary

#69C1CD

accent

#D8EE3A

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#170904

muted

#857B79

Preview Lab

Preview with #BB321F

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

Preview Lab → · Contrast checker → · Palette generator →