Blue Color


Blue is deep, cool-toned shade of cool blue. It is better contrasting with white. This color combines beautifully with mid yellow, cool green or mid red

Inverse Color #ff0
Complementary Color #feff00
Color Shade: cool blue (240° hue)
Color Temperature: cool
Lightness: 50% (better contrasting with white)
Blue Color Sample
Blue Color Sample

Better Alternatives To #0000ff

If you're looking for a similar cool blue shade, there are some better alternatives to Blue Color. The Blue Angel color for instance is a darker and a bit more faded option, however this color has a blue cyan bias. Consider a lighter and more soft alternative called Nimbus Blue (#4422ff) for more calm effect. Try Ultramarine as it also a bit more faded and calm.

Complementary Palette

#feff00 is the best complementary color to Blue. Mid yellow shades generally complement the cool blue hues best as they are found on the opposite end of the color wheel. The most popular #00f complementary color is Yellow, as it offers maximum contrast and grab the viewer's attention.

Analogous Palette

The analogous palette of blue cyan, cool blue, and warm blue colors offers a soft combination of similar cool shades. The analogous colors of White are #007fff and #7f00ff. Thus found on the left and right of #00f on the color wheel with a 30° gap. Consider matching Azure Radiance and Electric Violet colors as they work well with Blue.

Split-complementary Palette

The split-complementary Blue palette consists of #7fff00 and #ff7f00 colors. They can be found 30° apart on either side of the complementary color (#feff00). Try Chartreuse and Flush Orange colors in combination with #00f, 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 #00f offers a combination of warm green and mid red shades and equally high contrast between the three of them. Find triadic colors at the 120° distance from the Blue. Thus White and White giving maximum hue separation to use all three together.

Square Palette

The square color palette of Blue contains three additional colors. Thus, complementary Yellow, Rose, and Spring Green split by 90° on the color wheel. #00f square combo is a palette of cool blue, red magenta, mid yellow and cool green 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. Blue tetradic combo consists of mid yellow complementary color (#feff00) and two others. The White is positioned 120° clockwise from the primary color and Cyan / Aqua – 120° from the complementary Yellow. This palette is not recommended to use as-is. Try to tweak the saturation and brightness of #f00 and #00feff.

Conversion Table

In a RGB color space, hex #0000ff is made of 0% red, 0% green and 100% blue. In a HSL mode Blue has a hue angle of 240°, a saturation of 100% and a lightness of 50%. In a CMYK space (used in printing only), hex #0000ff is made of 100% cyan, 100% magenta, 0% yellow and 0% black ink.

HEX #0000ff
RGB Decimal rgb(0,0,255)
RGB Percentage 0%, 0%, 100%
CMYK 100, 100, 0, 0
HSL hsl(240,100%,50%)
HSV (or HSB) hsv(240,100%,100%)
CIE-LAB lab(32.3026,79.1967,-107.8637)
XYZ xyz(18.05,7.22,95.05)