#BB371E#BB371E
#BB371E is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.1% C 0.173 H 32.8°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).
Color values
| HEX | #BB371E |
|---|---|
| RGB | rgb(187, 55, 30) |
| HSL | hsl(10, 72%, 43%) |
| HSV | hsv(10, 84%, 73%) |
| CMYK | cmyk(0%, 70.6%, 84%, 26.7%) |
| CIE-LAB | lab(43.35, 51.62, 44.37) |
| CIE-LCH | lch(43.35, 68.07, 40.68°) |
| OKLab | oklab(53.14% 0.1452 0.0936) |
| OKLCH | oklch(53.14% 0.173 32.8) |
| XYZ | xyz(22.0967, 13.3943, 2.6499) |
| Luminance | 0.1339 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Rusty Red
#AF2F0D
ΔE00 3.74
Rust
#B7410E
ΔE00 5.30
Rust Red
#AA2704
ΔE00 5.38
Brick
#A03623
ΔE00 5.70
Firebrick
#B22222
ΔE00 5.93
Scarlet
#BE0119
ΔE00 6.08
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#BB371E #1EA2BB
analogous
#BB1E54 #BB371E #BB851E
triadic
#BB371E #1EBB37 #371EBB
tetradic
#BB371E #54BB1E #1EA2BB #851EBB
square
#BB371E #54BB1E #1EA2BB #851EBB
split-complementary
#BB371E #1EBB85 #1E54BB
monochromatic
#52180D #862716 #BB371E #DF5237 #E7806C
Accessibility & contrast
On white
5.71
#BB371E on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.68
#BB371E on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #BB371E
5.71:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##BB371E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##BB371E | 1.00 | 5.71 | 3.68 | 5.71 |
| #FFFFFF | 5.71 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.68 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.71 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5F5419
Deuteranopia (green-blind)
#7F7117
Tritanopia (blue-blind)
#CE0033
Achromatopsia (no color)
#666666
Design tokens & code
CSS
--color: #bb371e; /* rgb */ color: rgb(187, 55, 30); /* oklch */ color: oklch(53.1% 0.173 32.8);
Tailwind
colors: {
custom: {
50: '#d9765d',
500: '#bb371e',
950: '#000000',
},
}SCSS
$custom: #bb371e; $custom-light: #d9765d; $custom-dark: #000000;
JSON
{
"hex": "#bb371e",
"rgb": {
"r": 187,
"g": 55,
"b": 30
},
"hsl": {
"h": 9.554,
"s": 72.35,
"l": 42.549
},
"oklch": {
"l": 0.53137,
"c": 0.17276,
"h": 32.8
},
"luminance": 0.13391
}Semantic roles & 50–950 ramp
primary
#BB371E
secondary
#67BDCD
accent
#D2EF39
background
#FEF7F5
surface
#FDEDE9
border
#D5C8C5
text
#170904
muted
#857B79