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💡 Click on any color value below to copy it to clipboard
Running Number
11,797,555
HEX
#B40433
RGB
180, 4, 51
HSL
344°,96%,36%
HSV
344°,98%,71%
CMYK
0%,98%,72%,29%
Brightness
24%
Type
Dark
AA Normal Text: ≥ 4.5:1
AA Large Text: ≥ 3.0:1
AAA Normal Text: ≥ 7.0:1
AAA Large Text: ≥ 4.5:1
#B40433 sits at 344° on the color wheel, placing it in the rose family of the warm half of the spectrum. With 96% saturation and 36% lightness, it reads as a fully saturated, shadowed tone — an immediate, signal-grade voice that demands attention. Its RGB mix of 180, 4, 51 produces a 6.99:1 contrast ratio against white, which clears WCAG AA for body text in that pairing.
In RGB space #B40433 is a clear variant of CSS firebrick — about 35 units away from #B22222. Designers reach for rose hues at this saturation when the brief calls for bold, immediate signal, and at this lightness when they want a present, comfortable mid-canvas voice. On screen the warm cast tends to pair best with cool neutrals around 210°-230° to balance temperature.
See how this color appears in real UI elements
Button (filled)
Badge
Progress Bar
Link Hover
Input Focus Ring
Checkbox Active
Toggle Switch On
Slider Thumb
Card Border
Icon Highlight
Tooltip Background
Modal Header
Tab Active
Alert Box
Timeline Dot
Loading Spinner
Dropdown Selected
Table Row Highlight
Calendar Date
Mobile Device
See how to use #B40433 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#b40433";💡 Click any tab to see how to use #b40433 in different programming languages