Greenday Color

#99ff00

Greenday is vivid, warm-toned shade of cool yellow. It is better contrasting with black. This color combines beautifully with warm blue, cool red or cool cyan

Inverse Color #60f
Complementary Color #6500ff
Color Shade: cool yellow (84° hue)
Color Temperature: warm
Lightness: 50% (better contrasting with black)
Greenday Color Sample
Greenday Color Sample

Better Alternatives To #99ff00

If you're looking for a similar cool yellow shade, there are some better alternatives to Greenday Color. The Electric Leaf color for instance is a darker and a bit more faded option, however this color has a mid yellow bias. Consider a darker and more soft alternative called Overgrown (#88dd00) for more calm effect. Try Green Minions as it also a bit more faded and calm.

Complementary Palette

#6500ff is the best complementary color to Greenday. Warm blue shades generally complement the cool yellow hues best as they are found on the opposite end of the color wheel. The most popular #9f0 complementary color is Electric Violet, as it offers maximum contrast and grab the viewer's attention.

Analogous Palette

The analogous palette of warm yellow, cool yellow, and warm green colors offers a soft combination of similar warm shades. The analogous colors of White are #ffe500 and #19ff00. Thus found on the left and right of #9f0 on the color wheel with a 30° gap. Consider matching Turbo and Green colors as they work well with Greenday.

Split-complementary Palette

The split-complementary Greenday palette consists of #e500ff and #0019ff colors. They can be found 30° apart on either side of the complementary color (#6500ff). Try Electric Violet and Blue colors in combination with #9f0, as they are not as contrasting as a complementary color, hence, giving more hue variety to make your design stand out.

Triadic Palette

The triadic palette of #9f0 offers a combination of warm magenta and cool cyan shades and equally high contrast between the three of them. Find triadic colors at the 120° distance from the Greenday. Thus Hollywood Cerise and Azure Radiance giving maximum hue separation to use all three together.

Square Palette

The square color palette of Greenday contains three additional colors. Thus, complementary Electric Violet, Cyan / Aqua, and Red split by 90° on the color wheel. #9f0 square combo is a palette of cool yellow, warm cyan, warm blue and cool red shades that work together well.

Tetradic Palette

The tetradic palette is a bit more complex than the square and has more of a rectangle shape. Greenday tetradic combo consists of warm blue complementary color (#6500ff) and two others. The Azure Radiance is positioned 120° clockwise from the primary color and Blaze Orange – 120° from the complementary Electric Violet. This palette is not recommended to use as-is. Try to tweak the saturation and brightness of #0098ff and #ff6500.

Conversion Table

In a RGB color space, hex #99ff00 is made of 38% red, 63% green and 0% blue. In a HSL mode Greenday has a hue angle of 84°, a saturation of 100% and a lightness of 50%. In a CMYK space (used in printing only), hex #99ff00 is made of 40% cyan, 0% magenta, 100% yellow and 0% black ink.

HEX #99ff00
RGB Decimal rgb(153,255,0)
RGB Percentage 38%, 63%, 0%
CMYK 40, 0, 100, 0
HSL hsl(84,100%,50%)
HSV (or HSB) hsv(84,100%,100%)
CIE-LAB lab(90.9131,-60.1956,87.0398)
XYZ xyz(48.8969,78.2923,12.5348)
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