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💡 Click on any color value below to copy it to clipboard
Running Number
10,554,380
HEX
#A10C0C
RGB
161, 12, 12
HSL
0°,86%,34%
HSV
0°,93%,63%
CMYK
0%,93%,93%,37%
Brightness
22%
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
#A10C0C sits at 0° on the color wheel, placing it in the red family of the warm half of the spectrum. With 86% saturation and 34% lightness, it reads as a fully saturated, shadowed tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 161, 12, 12 produces a 8.16:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.
In RGB space #A10C0C is a clear variant of CSS firebrick — about 35 units away from #B22222. Designers reach for red 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 #A10C0C in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#a10c0c";💡 Click any tab to see how to use #a10c0c in different programming languages