Astronaut Blue

#064063

General Information about Astronaut Blue

The hexadecimal color #064063, also known as Astronaut Blue, is a dark shade of cyan-blue, belonging to the cool color family. It is composed of 2.4% red, 25.1% green, and 38.8% blue. In the RGB color model, it is represented as (6, 64, 99). In the CMYK color model, its composition is 94% cyan, 35% magenta, 0% yellow, and 61% black. This deep, muted blue evokes feelings of tranquility, sophistication, and depth. It's often associated with professionalism and reliability. It can be a great choice for creating a sense of calm and authority, but care should be taken to ensure sufficient contrast when used with other colors, particularly for text.

The color #064063, also known as Astronaut Blue, presents some accessibility challenges. Its low lightness value (approximately 13%) means it offers very little contrast when used as text against a white background. According to WCAG guidelines, the contrast ratio is significantly below the minimum requirement for readability. This is particularly important for users with visual impairments. To improve accessibility, consider using #064063 for decorative elements rather than essential text, or pair it with much lighter colors to ensure sufficient contrast. When used as a background color, make sure the foreground text is a very light color, preferably white or a very light shade of yellow or gray. Regular contrast checks using online tools are highly recommended during the design process.

Shades

Digital Color Formats

RGB
6 64 99
RGB6 64 99
Red
Green
Blue
HSL
202.58deg 88.57% 20.59%
202.5888.5720.59HSL
Hue
Saturation
Lightness
HWB
202.58deg 2.35% 61.18%
202.582.3561.18HWB
Hue
Whiteness
Blackness
hex#064063
rgb6 64 99
hsl202.58deg 88.57% 20.59%
cmyk93.94% 35.35% 0% 61.18%
hwb202.58deg 2.35% 61.18%
xyz-d650.04 0.05 0.12
oklch0.3566 0.0816 242.62
oklab0.3566 -0.04 -0.07
CMYK
93.94% 35.35% 0% 61.18%
93.9435.35061.18CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.04 0.05 0.12
0.040.050.12XYZ
X
Y
Z
OKLCH
0.3566 0.0816 242.62
0.35660.0816242.62LCH
Lightness
Chroma
Hue
OKLAB
0.3566 -0.04 -0.07
0.3566-0.04-0.07LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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