Dark Blue

#0000AA

General Information about #0000AA

The hexadecimal color code #0000AA, commonly known as dark blue or medium blue, is a specific point in the color spectrum represented in the RGB (Red, Green, Blue) color model. In this system, #0000AA signifies that there is no red (00) and no green (00), but a significant amount of blue (AA). This results in a deep, saturated blue hue. Hex color codes are widely used in web design, graphic design, and other digital applications for specifying colors precisely. Because of the complete absence of red and green, this color leans towards a pure blue, but it is not as light as true pure blue (#0000FF). The intensity or saturation of the color is influenced by the AA value, representing the amount of blue present. This hex code allows designers to consistently reproduce the exact same shade of dark blue across different media.

The hex color #0000aa, a dark blue, presents significant accessibility challenges, especially for users with visual impairments. Its low luminance value of approximately 0.1 means that text rendered in white on this background may barely meet WCAG AA contrast ratios for normal text and fail for larger text sizes. It's crucial to check the contrast ratio using tools like the WebAIM Contrast Checker. For optimal accessibility, consider using lighter shades of blue or pairing it with high-contrast colors like white or yellow. Avoid using this color for critical elements like links or buttons without sufficient contrast. Providing alternative text descriptions for images or graphical elements using this color will further enhance usability for screen reader users. Ensuring that interactive elements have clear focus indicators when using this color is also essential for keyboard navigation.

Shades

Digital Color Formats

RGB
0 0 170
RGB0 0 170
Red
Green
Blue
HSL
240deg 100% 33.33%
24010033.33HSL
Hue
Saturation
Lightness
HWB
240deg 0% 33.33%
240033.33HWB
Hue
Whiteness
Blackness
hex#0000AA
rgb0 0 170
hsl240deg 100% 33.33%
cmyk100% 100% 0% 33.33%
hwb240deg 0% 33.33%
xyz-d650.07 0.03 0.38
oklch0.3336 0.2312 264.07
oklab0.3336 -0.02 -0.23
CMYK
100% 100% 0% 33.33%
100100033.33CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.07 0.03 0.38
0.070.030.38XYZ
X
Y
Z
OKLCH
0.3336 0.2312 264.07
0.33360.2312264.07LCH
Lightness
Chroma
Hue
OKLAB
0.3336 -0.02 -0.23
0.3336-0.02-0.23LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons