Dark Blue

#0A00CA

General Information about #0A00CA

The hexadecimal color #0A00CA, often referred to as dark blue or deep indigo, is a rich and intense shade of blue. It is composed of 3.92% red, 0% green, and 79.22% blue. In the RGB color space, it is represented as RGB(10, 0, 202). This color evokes feelings of depth, mystery, and sophistication. Due to its high blue content, it leans towards the cooler end of the color spectrum. In color theory, it's important to note that this dark shade of blue should be used judiciously, as it can easily overpower other colors. It works well when paired with lighter, contrasting colors to create visual balance and prevent the overall design from feeling too heavy or somber. Its presence can create feelings of trust, security and loyality. However, the color also may create feelings of sadness, distress and depression, and therefore should be used with care.

The hex color #0a00ca, a deep, dark blue, presents significant accessibility challenges, primarily related to contrast. When used as a foreground color, it demands a very light background to ensure sufficient contrast for readability, particularly for users with visual impairments. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. This dark blue will likely fail these contrast tests against many common background colors, such as grays or even slightly lighter blues. Therefore, careful consideration must be given to background color choices. Using tools to evaluate contrast ratios is essential. Furthermore, avoid using this color for critical information or interactive elements without proper contrast, as it could exclude users and hinder usability. Consider providing alternative color schemes or themes that offer better contrast for users with different visual needs.

Shades

Digital Color Formats

RGB
10 0 202
RGB10 0 202
Red
Green
Blue
HSL
242.97deg 100% 39.61%
242.9710039.61HSL
Hue
Saturation
Lightness
HWB
242.97deg 0% 20.78%
242.97020.78HWB
Hue
Whiteness
Blackness
hex#0A00CA
rgb10 0 202
hsl242.97deg 100% 39.61%
cmyk95.05% 100% 0% 20.78%
hwb242.97deg 0% 20.78%
xyz-d650.11 0.04 0.56
oklch0.3812 0.2614 265.18
oklab0.3812 -0.02 -0.26
CMYK
95.05% 100% 0% 20.78%
95.05100020.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.11 0.04 0.56
0.110.040.56XYZ
X
Y
Z
OKLCH
0.3812 0.2614 265.18
0.38120.2614265.18LCH
Lightness
Chroma
Hue
OKLAB
0.3812 -0.02 -0.26
0.3812-0.02-0.26LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons