#BB312A#BB312A

#BB312A is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.7% C 0.176 H 27.9°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#BB312A
RGB	rgb(187, 49, 42)
HSL	hsl(3, 63%, 45%)
HSV	hsv(3, 78%, 73%)
CMYK	cmyk(0%, 73.8%, 77.5%, 26.7%)
CIE-LAB	lab(42.66, 54.20, 37.38)
CIE-LCH	lch(42.66, 65.85, 34.59°)
OKLab	oklab(52.65% 0.1556 0.0823)
OKLCH	oklch(52.65% 0.176 27.9)
XYZ	xyz(22.0123, 12.9320, 3.5271)
Luminance	0.1293 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB312A #2AB4BB

analogous

#BB2A6B #BB312A #BB7A2A

triadic

#BB312A #2ABB31 #312ABB

tetradic

#BB312A #6BBB2A #2AB4BB #7A2ABB

square

#BB312A #6BBB2A #2AB4BB #7A2ABB

split-complementary

#BB312A #2ABB7A #2A6BBB

monochromatic

#571714 #89241F #BB312A #D7524C #E2827D

Accessibility & contrast

On white

5.86

#BB312A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#BB312A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB312A

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB312A	#FFFFFF	#000000	##FFFFFF
##BB312A	1.00	5.86	3.59	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5228

Deuteranopia (green-blind)

#7D7024

Tritanopia (blue-blind)

#CE0031

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #bb312a;
/* rgb */ color: rgb(187, 49, 42);
/* oklch */ color: oklch(52.7% 0.176 27.9);

Tailwind

colors: {
  custom: {
    50: '#d87364',
    500: '#bb312a',
    950: '#000000',
  },
}

SCSS

$custom: #bb312a;
$custom-light: #d87364;
$custom-dark: #000000;

JSON

{
  "hex": "#bb312a",
  "rgb": {
    "r": 187,
    "g": 49,
    "b": 42
  },
  "hsl": {
    "h": 2.897,
    "s": 63.319,
    "l": 44.902
  },
  "oklch": {
    "l": 0.52655,
    "c": 0.17599,
    "h": 27.9
  },
  "luminance": 0.12929
}

Semantic roles & 50–950 ramp

primary

#BB312A

secondary

#76C6CA

accent

#DEE641

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #BB312A

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

Preview Lab → · Contrast checker → · Palette generator →