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💡 Click on any color value below to copy it to clipboard
Running Number
13,963,313
HEX
#D51031
RGB
213, 16, 49
HSL
350°,86%,45%
HSV
350°,92%,84%
CMYK
0%,92%,77%,16%
Brightness
31%
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
#D51031 sits at 350° on the color wheel, placing it in the red family of the warm half of the spectrum. With 86% saturation and 45% lightness, it reads as a fully saturated, balanced tone — an immediate, signal-grade voice that demands attention. Its RGB mix of 213, 16, 49 produces a 5.32:1 contrast ratio against white, which clears WCAG AA for body text in that pairing.
In RGB space #D51031 is a close cousin of CSS crimson — about 14 units away from #DC143C. 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 #D51031 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#d51031";💡 Click any tab to see how to use #d51031 in different programming languages