Astronaut Blue

#0A3B64

General Information about Astronaut Blue

The hex color #0A3B64, also referred to as Astronaut Blue, is a dark shade of blue that falls within the cyan-blue color family. It is composed of 3.92% red, 23.14% green, and 39.22% blue. In the RGB color space, it has values of R:10, G:59, and B:100. Its CMYK values are C:90, M:41, Y:0, and K:61. This color is often associated with feelings of calmness, stability, and intelligence. It's frequently used in corporate branding to convey trust and reliability, as well as in designs where a sense of depth and sophistication is desired. The color's hexadecimal triplet is #0A3B64, indicating the intensity of red, green, and blue light that creates the color when displayed on screens.

The hex color #0A3B64, also known as Astronaut Blue, presents some accessibility challenges, particularly for text-based content. Its low lightness value (approximately 7%) means that text rendered in this color against a white background would likely fail WCAG (Web Content Accessibility Guidelines) contrast ratio requirements. To ensure readability and accessibility, it's crucial to pair this dark blue with significantly lighter colors for text or interactive elements. White or very light shades of yellow or green would be suitable choices. When used as a background color, ensure that all foreground elements, including text, icons, and controls, have sufficient contrast. Tools like contrast checkers can help you verify that your color combinations meet accessibility standards and provide an inclusive user experience for individuals with visual impairments. Consider also providing alternative styling options for users who may have specific visual needs.

Shades

Digital Color Formats

RGB
10 59 100
RGB10 59 100
Red
Green
Blue
HSL
207.33deg 81.82% 21.57%
207.3381.8221.57HSL
Hue
Saturation
Lightness
HWB
207.33deg 3.92% 60.78%
207.333.9260.78HWB
Hue
Whiteness
Blackness
hex#0A3B64
rgb10 59 100
hsl207.33deg 81.82% 21.57%
cmyk90% 41% 0% 60.78%
hwb207.33deg 3.92% 60.78%
xyz-d650.04 0.04 0.13
oklch0.3448 0.0872 249.29
oklab0.3448 -0.03 -0.08
CMYK
90% 41% 0% 60.78%
9041060.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.04 0.04 0.13
0.040.040.13XYZ
X
Y
Z
OKLCH
0.3448 0.0872 249.29
0.34480.0872249.29LCH
Lightness
Chroma
Hue
OKLAB
0.3448 -0.03 -0.08
0.3448-0.03-0.08LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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