#BB313C#BB313C

#BB313C is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.9% C 0.174 H 21.4°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#BB313C
RGB	rgb(187, 49, 60)
HSL	hsl(355, 58%, 46%)
HSV	hsv(355, 74%, 73%)
CMYK	cmyk(0%, 73.8%, 67.9%, 26.7%)
CIE-LAB	lab(42.90, 55.01, 27.08)
CIE-LCH	lch(42.90, 61.32, 26.21°)
OKLab	oklab(52.91% 0.162 0.0634)
OKLCH	oklch(52.91% 0.174 21.4)
XYZ	xyz(22.4099, 13.0910, 5.6209)
Luminance	0.1309 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB313C #31BBB0

analogous

#BB3181 #BB313C #BB6B31

triadic

#BB313C #3CBB31 #313CBB

tetradic

#BB313C #81BB31 #31BBB0 #6B31BB

square

#BB313C #81BB31 #31BBB0 #6B31BB

split-complementary

#BB313C #31BB6B #3181BB

monochromatic

#5A181D #8B242C #BB313C #D35660 #E0878E

Accessibility & contrast

On white

5.80

#BB313C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#BB313C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB313C

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB313C	#FFFFFF	#000000	##FFFFFF
##BB313C	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59533B

Deuteranopia (green-blind)

#7B7038

Tritanopia (blue-blind)

#CD0036

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #bb313c;
/* rgb */ color: rgb(187, 49, 60);
/* oklch */ color: oklch(52.9% 0.174 21.4);

Tailwind

colors: {
  custom: {
    50: '#d77471',
    500: '#bb313c',
    950: '#000000',
  },
}

SCSS

$custom: #bb313c;
$custom-light: #d77471;
$custom-dark: #000000;

JSON

{
  "hex": "#bb313c",
  "rgb": {
    "r": 187,
    "g": 49,
    "b": 60
  },
  "hsl": {
    "h": 355.217,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.5291,
    "c": 0.17396,
    "h": 21.4
  },
  "luminance": 0.13088
}

Semantic roles & 50–950 ramp

primary

#BB313C

secondary

#7FC9C3

accent

#E2D546

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB313C

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

Preview Lab → · Contrast checker → · Palette generator →