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Running Number
8,507,830
HEX
#81D1B6
RGB
129, 209, 182
HSL
160°,47%,66%
HSV
160°,38%,82%
CMYK
38%,0%,13%,18%
Brightness
71%
Type
Light
AA Normal Text: ≥ 4.5:1
AA Large Text: ≥ 3.0:1
AAA Normal Text: ≥ 7.0:1
AAA Large Text: ≥ 4.5:1
#81D1B6 sits at 160° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 47% saturation and 66% lightness, it reads as a moderately saturated, light tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 129, 209, 182 produces a 11.73:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.
In RGB space #81D1B6 is a clear variant of CSS sky blue — about 53 units away from #87CEEB. Designers reach for spring green hues at this saturation when the brief calls for a conversational, mid-energy register, and at this lightness when they want a present, comfortable mid-canvas voice. 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 #81D1B6 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#81d1b6";💡 Click any tab to see how to use #81d1b6 in different programming languages