Astronaut Blue

#064464

General Information

The hex color #064464, also known as Astronaut Blue, is a dark, muted shade of blue-cyan. It is composed of 2.4% red, 26.7% green, and 39.2% blue. In the RGB color model, this translates to 6 red, 68 green, and 100 blue. The corresponding CMYK values are 0.94 cyan, 0.32 magenta, 0.00 yellow, and 0.61 black. This color falls within the blue-green color range and is often associated with feelings of calmness, stability, and sophistication. Its relatively low saturation and lightness make it suitable for backgrounds and text elements where readability is a priority.

The color #064464, also known as Astronaut Blue, presents some accessibility challenges, particularly when used as text against a white or light-colored background. Its low lightness value (approximately 17%) results in a low contrast ratio. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal text and 3:1 for large text. Using #064464 as text on a white background would likely fall short of these recommendations. To improve accessibility, consider using a lighter shade of blue or pairing it with a very light background color to achieve sufficient contrast. Alternatively, it can be used for purely decorative elements where text contrast is not a factor. When used for interactive elements, ensure sufficient visual cues are present beyond color alone.

Shades

Digital Color Formats

RGB
6 68 100
RGB6 68 100
Red
Green
Blue
HSL
200.43deg 88.68% 20.78%
200.4388.6820.78HSL
Hue
Saturation
Lightness
HWB
200.43deg 2.35% 60.78%
200.432.3560.78HWB
Hue
Whiteness
Blackness
hex#064464
rgb6 68 100
hsl200.43deg 88.68% 20.78%
cmyk94% 32% 0% 60.78%
hwb200.43deg 2.35% 60.78%
xyz-d650.04 0.05 0.13
oklch0.368 0.0792 238.81
oklab0.368 -0.04 -0.07
CMYK
94% 32% 0% 60.78%
9432060.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.04 0.05 0.13
0.040.050.13XYZ
X
Y
Z
OKLCH
0.368 0.0792 238.81
0.3680.0792238.81LCH
Lightness
Chroma
Hue
OKLAB
0.368 -0.04 -0.07
0.368-0.04-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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