#BB3237#BB3237
#BB3237 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.9% C 0.173 H 23.6°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).
Color values
| HEX | #BB3237 |
|---|---|
| RGB | rgb(187, 50, 55) |
| HSL | hsl(358, 58%, 46%) |
| HSV | hsv(358, 73%, 73%) |
| CMYK | cmyk(0%, 73.3%, 70.6%, 26.7%) |
| CIE-LAB | lab(42.95, 54.40, 30.16) |
| CIE-LCH | lch(42.95, 62.20, 29.00°) |
| OKLab | oklab(52.92% 0.159 0.0695) |
| OKLCH | oklch(52.92% 0.173 23.6) |
| XYZ | xyz(22.3262, 13.1252, 4.9715) |
| Luminance | 0.1312 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.32
Cardinal
#C41E3A
ΔE00 3.37
Reddish
#C44240
ΔE00 3.95
Lipstick Red
#C0022F
ΔE00 3.96
Cherry (survey)
#CF0234
ΔE00 4.13
Firebrick
#B22222
ΔE00 4.85
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#BB3237 #32BBB6
analogous
#BB327C #BB3237 #BB7232
triadic
#BB3237 #37BB32 #3237BB
tetradic
#BB3237 #7CBB32 #32BBB6 #7232BB
square
#BB3237 #7CBB32 #32BBB6 #7232BB
split-complementary
#BB3237 #32BB72 #327CBB
monochromatic
#5A181B #8B2529 #BB3237 #D2585C #DF888B
Accessibility & contrast
On white
5.79
#BB3237 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.62
#BB3237 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #BB3237
5.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##BB3237 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##BB3237 | 1.00 | 5.79 | 3.62 | 5.79 |
| #FFFFFF | 5.79 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.79 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5A5336
Deuteranopia (green-blind)
#7C7033
Tritanopia (blue-blind)
#CE0035
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #bb3237; /* rgb */ color: rgb(187, 50, 55); /* oklch */ color: oklch(52.9% 0.173 23.6);
Tailwind
colors: {
custom: {
50: '#d8746e',
500: '#bb3237',
950: '#000000',
},
}SCSS
$custom: #bb3237; $custom-light: #d8746e; $custom-dark: #000000;
JSON
{
"hex": "#bb3237",
"rgb": {
"r": 187,
"g": 50,
"b": 55
},
"hsl": {
"h": 357.81,
"s": 57.806,
"l": 46.471
},
"oklch": {
"l": 0.52924,
"c": 0.17349,
"h": 23.6
},
"luminance": 0.13122
}Semantic roles & 50–950 ramp
primary
#BB3237
secondary
#80C9C6
accent
#E1DB47
background
#FEF7F6
surface
#FCEDEB
border
#D5C8C6
text
#160907
muted
#847B7A