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Running Number
738,075
HEX
#0B431B
RGB
11, 67, 27
HSL
137°,72%,15%
HSV
137°,84%,26%
CMYK
84%,0%,60%,74%
Brightness
18%
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
#0B431B sits at 137° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 72% saturation and 15% lightness, it reads as a richly saturated, deep tone — a weighted, dramatic presence with deep undertones. Its RGB mix of 11, 67, 27 produces a 11.46:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.
In RGB space #0B431B is a distant relative of CSS green — about 68 units away from #008000. Designers reach for spring green hues at this saturation when the brief calls for bold, immediate signal, and at this lightness when they want weight, depth, and grounded contrast. On screen the cool cast tends to pair best with warm neutrals in the 25°-45° range to add life.
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 #0B431B in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#0b431b";💡 Click any tab to see how to use #0b431b in different programming languages