Bright Green Color – #66ff00: Codes and Complete Breakdown
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The Bright Green color hex code is #66ff00, and it is composed of 40% red, 100% green and 0% blue.
Bright Green is a light, vibrant, saturated, and cool color at 100% saturation. It has a contrast ratio of 1.32:1 against a white background, which fails WCAG AA (Web Content Accessibility Guidelines, Level AA) compliance.
For better visibility, it is recommended to use the Bright Green color (#66ff00) against dark backgrounds.

Bright Green Color Shades
Complementary colors
Triadic colors
Tints or lighter colors
Darker colors
Analogous colors
Monochromatic colors
#66ff00
Bright Green Color Codes and Information
Here’s a complete breakdown of the color Bright Green, including its HEX, RGB, HSL, and CMYK values, as well as other information about the color.
| Data Type | Values/Details |
|---|---|
| Hex | #66ff00 |
| RGB | rgb(102,255,0) |
| HSL | hsl(96,100%,50%) |
| CMYK | 60, 0, 100, 0 |
| HSV | 96, 100, 100 |
| RGB % | 40, 100, 0 |
| XYZ | 41.2, 74.3, 12.2 |
| LAB | 89.1, -74.5, 84.7 |
| Color Category | Light |
| Color Family | Green |
| Saturation | 100% |
| Temperature | Warm |
| Contrast Ratio Againt White (#ffffff) | 1.32 (fails WCAG AA) |
| Contrast Ratio Againt Black (#000000) | 15.87 (passes WCAG AA) |
Similar Colors to Bright Green Color
#e8ddae

Star Bright
#2863ad

Rainbow Bright
#febf01

Look at the Bright Side
#f1e4b0

Lime Bright
#94d0e9

Light Bright Spark
#096872

Kingfisher Bright
#f97306

Fire Dragon Bright
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Essentially Bright









