Astronaut
General Information about #21317A
#21317A, also known as Astronaut, is a dark shade of blue situated in the blue-violet segment of the color spectrum. This hex color is composed of 12.9% red, 19.2% green and 47.8% blue. In the RGB color model, #21317A consists of these values to create the specific hue. Represented in the CMYK color model, it is composed of 73% cyan, 60% magenta, 0% yellow and 52% black. The color is perceived as trustworthy, reliable, and secure, often associated with corporate identities and formal settings. Its darkness is useful for creating contrast and depth in designs. This color can be described as deep, solid and enigmatic. It is also reminiscent of the night sky, which adds a celestial sense of wonder.
The hex color #21317A, also known as Astronaut, presents some accessibility challenges, especially when used as a background or text color. Its relatively low luminance (darkness) requires careful consideration of contrast ratios to ensure readability and usability, particularly for users with visual impairments. According to WCAG guidelines, the contrast ratio between text and background should be at least 4.5:1 for normal text and 3:1 for large text (14pt bold or 18pt regular). When using #21317A for text, it's essential to pair it with a light color such as a light yellow or a pale cyan to achieve sufficient contrast. Similarly, when using #21317A as a background, light-colored text is needed. Tools like WebAIM's contrast checker can verify compliance. If the contrast is insufficient, consider adjusting the color by lightening it or using a lighter shade. Also, make sure interactive elements have other visual cues besides color.
Shades
Digital Color Formats
Alternative colors
- #3a4a8f
A slightly lighter shade that maintains the blue undertones while improving contrast against white backgrounds.
- #34466d
A more neutral dark blue that offers better compatibility with a wider range of accent colors.
- #415ba3
This color has a higher luminance and therefore better readability on white background
Applications
Web Design
In web design, #21317A can serve as a primary color for headers, navigation bars, or call-to-action buttons, especially for websites targeting corporate or educational audiences. Its deep blue tone evokes feelings of trust and stability. To create visual interest, consider pairing it with complementary colors or lighter shades of blue. Make sure to test the contrast with the text color to meet accessibility guidelines.
Interior Design
In interior design, #21317A can be used as an accent wall color in offices or studies to foster a sense of focus and professionalism. It can also be used in furniture upholstery or decorative accessories, like pillows or rugs, to add depth to a room. Combine it with lighter, neutral colors for a balanced look. The application creates a professional, serious atmosphere.
Fashion
In the fashion industry, #21317A can be used for elegant evening wear or formal business attire. It is a versatile color that complements a variety of skin tones and can be accessorized with silver or gold jewelry for a sophisticated look. It can also be used as a base for printed textiles. This ensures a chic and stylish appearance.