Astronaut
General Information about #213F7A
The hexadecimal color code #213F7A, also known as Astronaut, is a dark shade of blue. It is composed of 12.9% red, 24.7% green, and 47.8% blue. In the RGB color model, this translates to 33 red, 63 green, and 122 blue. The color has a hue angle of 220.8 degrees, a saturation of 57.1%, and a lightness of 30.4%. #213F7A is often associated with qualities like trust, stability, and intelligence. Colors similar to #213F7A include navy blue, royal blue, and midnight blue. It belongs to the blue color family, which is generally considered a calming and serene color. Its relative darkness gives it a sense of professionalism and authority. The color is often used in corporate branding and web design where trustworthiness and stability are desired qualities.
The color #213F7A, also known as Astronaut, presents some accessibility challenges, especially when used for text. Its relatively low lightness value (approximately 18%) means that it requires a high contrast ratio with the background to be legible. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is needed for normal text and 3:1 for large text. When using #213F7A for text, ensure it is paired with a very light color like white or a pale yellow to meet these contrast requirements. For decorative elements, such as backgrounds or borders, contrast requirements are less strict, but still important to consider for users with visual impairments. Avoid pairing #213F7A with other dark colors, as this will reduce readability and accessibility. Using a color contrast checker tool is highly recommended to verify compliance with accessibility standards.
Shades
Digital Color Formats
Alternative colors
- #4682b4
A lighter shade of blue that maintains a similar aesthetic but offers better contrast when used with white text.
- #4169e1
A more vibrant blue that can be used to add a pop of color while still being relatively accessible.
- #808080
A neutral gray that can be used as a background color to provide better contrast for #213F7A when used as text.
Applications
Web Design
In web design, #213F7A can be used as a primary color for headers, navigation bars, or call-to-action buttons. Its deep, calming hue evokes feelings of trust and stability, making it suitable for websites in the finance, technology, or education sectors. Pair it with lighter accent colors to create a balanced and professional aesthetic. This color can also be incorporated into website backgrounds, but it is crucial to ensure sufficient contrast with text and other elements to maintain readability and accessibility. Use sparingly in data visualizations, as its darkness can obscure finer details.
Interior Design
In interior design, #213F7A can be used as an accent color for walls, furniture, or decorative elements. Its rich, sophisticated tone creates a sense of depth and tranquility, making it suitable for bedrooms, living rooms, or studies. Pair it with lighter neutrals like beige or gray to create a balanced and inviting space. This color can also be used in combination with natural materials like wood or stone to create a warm and organic feel. Consider using it in small doses, as excessive use can make a room feel dark and overwhelming.
Branding
#213F7A can be used to create elegant and professional branding materials. This color would work well to add contrast to lighter shades of gray in a dark mode theme. It will complement light themed websites and printed materials. The hex color can be incorporated into logos, business cards, and marketing collateral to convey a sense of trust and reliability, in fields of insurance or banking, for example.