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💡 Click on any color value below to copy it to clipboard
Running Number
3,173,722
HEX
#306D5A
RGB
48, 109, 90
HSL
161°,39%,31%
HSV
161°,56%,43%
CMYK
56%,0%,17%,57%
Brightness
35%
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
#306D5A sits at 161° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 39% saturation and 31% lightness, it reads as a softly muted, shadowed tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 48, 109, 90 produces a 6.07:1 contrast ratio against white, which clears WCAG AA for body text in that pairing.
In RGB space #306D5A is a clear variant of CSS sea green — about 30 units away from #2E8B57. 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 #306D5A in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#306d5a";💡 Click any tab to see how to use #306d5a in different programming languages