#BB312C#BB312C

#BB312C is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.7% C 0.176 H 27.2°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#BB312C
RGB	rgb(187, 49, 44)
HSL	hsl(2, 62%, 45%)
HSV	hsv(2, 76%, 73%)
CMYK	cmyk(0%, 73.8%, 76.5%, 26.7%)
CIE-LAB	lab(42.68, 54.28, 36.28)
CIE-LCH	lch(42.68, 65.29, 33.76°)
OKLab	oklab(52.68% 0.1562 0.0804)
OKLCH	oklch(52.68% 0.176 27.2)
XYZ	xyz(22.0490, 12.9467, 3.7204)
Luminance	0.1294 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB312C #2CB6BB

analogous

#BB2C6E #BB312C #BB782C

triadic

#BB312C #2CBB31 #312CBB

tetradic

#BB312C #6EBB2C #2CB6BB #782CBB

square

#BB312C #6EBB2C #2CB6BB #782CBB

split-complementary

#BB312C #2CBB78 #2C6EBB

monochromatic

#581715 #892420 #BB312C #D6534F #E18480

Accessibility & contrast

On white

5.85

#BB312C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#BB312C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB312C

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB312C	#FFFFFF	#000000	##FFFFFF
##BB312C	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)

#5A522A

Deuteranopia (green-blind)

#7C7027

Tritanopia (blue-blind)

#CE0031

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #bb312c;
/* rgb */ color: rgb(187, 49, 44);
/* oklch */ color: oklch(52.7% 0.176 27.2);

Tailwind

colors: {
  custom: {
    50: '#d87466',
    500: '#bb312c',
    950: '#000000',
  },
}

SCSS

$custom: #bb312c;
$custom-light: #d87466;
$custom-dark: #000000;

JSON

{
  "hex": "#bb312c",
  "rgb": {
    "r": 187,
    "g": 49,
    "b": 44
  },
  "hsl": {
    "h": 2.098,
    "s": 61.905,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52679,
    "c": 0.17571,
    "h": 27.2
  },
  "luminance": 0.12943
}

Semantic roles & 50–950 ramp

primary

#BB312C

secondary

#79C7CA

accent

#DFE543

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB312C

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

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