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Running Number
420,688
HEX
#066B50
RGB
6, 107, 80
HSL
164°,89%,22%
HSV
164°,94%,42%
CMYK
94%,0%,25%,58%
Brightness
29%
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
#066B50 sits at 164° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 89% saturation and 22% lightness, it reads as a fully saturated, deep tone — a weighted, dramatic presence with deep undertones. Its RGB mix of 6, 107, 80 produces a 6.51:1 contrast ratio against white, which clears WCAG AA for body text in that pairing.
In RGB space #066B50 is a clear variant of CSS sea green — about 52 units away from #2E8B57. 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 #066B50 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#066b50";💡 Click any tab to see how to use #066b50 in different programming languages