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Running Number
5,753,177
HEX
#57C959
RGB
87, 201, 89
HSL
121°,51%,56%
HSV
121°,57%,79%
CMYK
57%,0%,56%,21%
Brightness
60%
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
#57C959 sits at 121° on the color wheel, placing it in the green family of the cool half of the spectrum. With 51% saturation and 56% 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 87, 201, 89 produces a 9.90:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.
In RGB space #57C959 is a distant relative of CSS sea green — about 74 units away from #2E8B57. Designers reach for 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 #57C959 in different programming languages
| Platform | Languages |
|---|---|
| Frontend | |
| Mobile | |
| Backend | |
| Others |
document.getElementById("box").style.backgroundColor = "#57c959";💡 Click any tab to see how to use #57c959 in different programming languages