#BB313A#BB313A

#BB313A is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.9% C 0.174 H 22.2°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#BB313A
RGB	rgb(187, 49, 58)
HSL	hsl(356, 58%, 46%)
HSV	hsv(356, 74%, 73%)
CMYK	cmyk(0%, 73.8%, 69%, 26.7%)
CIE-LAB	lab(42.87, 54.91, 28.26)
CIE-LCH	lch(42.87, 61.75, 27.23°)
OKLab	oklab(52.88% 0.1612 0.0658)
OKLCH	oklch(52.88% 0.174 22.2)
XYZ	xyz(22.3580, 13.0703, 5.3477)
Luminance	0.1307 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB313A #31BBB2

analogous

#BB317F #BB313A #BB6D31

triadic

#BB313A #3ABB31 #313ABB

tetradic

#BB313A #7FBB31 #31BBB2 #6D31BB

square

#BB313A #7FBB31 #31BBB2 #6D31BB

split-complementary

#BB313A #31BB6D #317FBB

monochromatic

#5A181C #8B242B #BB313A #D3565E #E0878D

Accessibility & contrast

On white

5.81

#BB313A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#BB313A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB313A

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB313A	#FFFFFF	#000000	##FFFFFF
##BB313A	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595239

Deuteranopia (green-blind)

#7B7036

Tritanopia (blue-blind)

#CE0036

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #bb313a;
/* rgb */ color: rgb(187, 49, 58);
/* oklch */ color: oklch(52.9% 0.174 22.2);

Tailwind

colors: {
  custom: {
    50: '#d77470',
    500: '#bb313a',
    950: '#000000',
  },
}

SCSS

$custom: #bb313a;
$custom-light: #d77470;
$custom-dark: #000000;

JSON

{
  "hex": "#bb313a",
  "rgb": {
    "r": 187,
    "g": 49,
    "b": 58
  },
  "hsl": {
    "h": 356.087,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52877,
    "c": 0.17411,
    "h": 22.2
  },
  "luminance": 0.13067
}

Semantic roles & 50–950 ramp

primary

#BB313A

secondary

#7FC9C4

accent

#E2D846

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB313A

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

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