#BB4437#BB4437
#BB4437 is a mid, vivid red. Relative luminance 0.150; OKLCH L 54.9% C 0.156 H 29.3°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #BB4437 |
|---|---|
| RGB | rgb(187, 68, 55) |
| HSL | hsl(6, 55%, 47%) |
| HSV | hsv(6, 71%, 73%) |
| CMYK | cmyk(0%, 63.6%, 70.6%, 26.7%) |
| CIE-LAB | lab(45.60, 47.18, 33.28) |
| CIE-LCH | lch(45.60, 57.74, 35.20°) |
| OKLab | oklab(54.91% 0.1362 0.0763) |
| OKLCH | oklch(54.91% 0.156 29.3) |
| XYZ | xyz(23.2527, 14.9781, 5.2803) |
| Luminance | 0.1497 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Reddish
#C44240
ΔE00 3.35
Dull Red
#BB3F3F
ΔE00 3.68
Firebrick
#B22222
ΔE00 6.47
Dusty Red
#B9484E
ΔE00 6.75
Dark Coral
#CF524E
ΔE00 6.87
Brick
#A03623
ΔE00 7.13
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#BB4437 #37AEBB
analogous
#BB376C #BB4437 #BB8637
triadic
#BB4437 #37BB44 #4437BB
tetradic
#BB4437 #6CBB37 #37AEBB #8637BB
square
#BB4437 #6CBB37 #37AEBB #8637BB
split-complementary
#BB4437 #37BB86 #376CBB
monochromatic
#5C221B #8C3329 #BB4437 #D06A5F #DE968E
Accessibility & contrast
On white
5.26
#BB4437 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.99
#BB4437 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #BB4437
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##BB4437 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##BB4437 | 1.00 | 5.26 | 3.99 | 5.26 |
| #FFFFFF | 5.26 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.26 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#645C35
Deuteranopia (green-blind)
#827633
Tritanopia (blue-blind)
#CD2742
Achromatopsia (no color)
#6C6C6C
Design tokens & code
CSS
--color: #bb4437; /* rgb */ color: rgb(187, 68, 55); /* oklch */ color: oklch(54.9% 0.156 29.3);
Tailwind
colors: {
custom: {
50: '#d77d6e',
500: '#bb4437',
950: '#000000',
},
}SCSS
$custom: #bb4437; $custom-light: #d77d6e; $custom-dark: #000000;
JSON
{
"hex": "#bb4437",
"rgb": {
"r": 187,
"g": 68,
"b": 55
},
"hsl": {
"h": 5.909,
"s": 54.545,
"l": 47.451
},
"oklch": {
"l": 0.5491,
"c": 0.15612,
"h": 29.3
},
"luminance": 0.14975
}Semantic roles & 50–950 ramp
primary
#BB4437
secondary
#85C2C9
accent
#CFDE4A
background
#FEF7F6
surface
#FCEEEC
border
#D5C9C7
text
#160A07
muted
#847C7A