Astronaut

#1F3A73

General Information about #1F3A73

The hex color #1F3A73, often referred to as 'Astronaut,' is a deep, muted shade of blue that evokes feelings of tranquility, sophistication, and professionalism. In the RGB color model, it is composed of 12.2% red, 22.7% green, and 45.1% blue. This color is frequently used in corporate branding and web design to create a sense of trust and reliability. Its dark tone makes it suitable for backgrounds or text elements when paired with lighter colors for contrast. The hex code #1F3A73 can be used in HTML and CSS to specify this particular shade of blue accurately. Understanding the color composition helps designers effectively incorporate it into various projects.

The hex color #1F3A73, also known as Astronaut, presents some accessibility challenges, especially when used as a background color for text. Its relatively low luminance (darkness) means that text placed on this background needs to be a light color to provide sufficient contrast. A contrast ratio of at least 4.5:1 is recommended for normal-sized text, and 3:1 for large text, according to WCAG guidelines. Using tools to measure contrast ratios is crucial to ensure readability. When using #1F3A73 for interactive elements like buttons, ensure sufficient visual cues beyond color alone are provided to aid users with visual impairments. Consider adding borders, icons, or text labels to enhance usability and inclusivity. Proper color choices ensure content is accessible to individuals with color blindness or low vision.

Shades

Digital Color Formats

RGB
31 58 115
RGB31 58 115
Red
Green
Blue
HSL
220.71deg 57.53% 28.63%
220.7157.5328.63HSL
Hue
Saturation
Lightness
HWB
220.71deg 12.16% 54.9%
220.7112.1654.9HWB
Hue
Whiteness
Blackness
hex#1F3A73
rgb31 58 115
hsl220.71deg 57.53% 28.63%
cmyk73.04% 49.57% 0% 54.9%
hwb220.71deg 12.16% 54.9%
xyz-d650.05 0.05 0.17
oklch0.3608 0.1037 263.15
oklab0.3608 -0.01 -0.1
CMYK
73.04% 49.57% 0% 54.9%
73.0449.57054.9CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.05 0.17
0.050.050.17XYZ
X
Y
Z
OKLCH
0.3608 0.1037 263.15
0.36080.1037263.15LCH
Lightness
Chroma
Hue
OKLAB
0.3608 -0.01 -0.1
0.3608-0.01-0.1LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons