Smalt
General Information about #00309B (Smalt)
The hex color code #00309B represents a deep, saturated blue hue, often referred to as "Smalt." Smalt is a historical pigment made from potassium glass colored with cobalt, providing a distinctive, intense blue. In the RGB color model, #00309B is composed of 0% red, 18.82% green, and 61.18% blue. Its CMYK values are 100% cyan, 69% magenta, 0% yellow, and 39% black. This color evokes feelings of trustworthiness, stability, and depth. In color psychology, blue is associated with calmness, intellect, and security, making it a popular choice for corporate branding, governmental institutions, and educational materials. The color name stems from its historical use in creating intense blue glass and pigments.
The color #00309B, a deep, saturated blue, presents significant accessibility considerations. Its low luminance value necessitates careful pairing with contrasting colors, particularly for text. According to WCAG guidelines, sufficient contrast is crucial for readability, especially for users with visual impairments. When using #00309B as a background, ensure that the foreground text is a light color, such as white or a very pale yellow, to achieve a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Avoid pairing it with similar dark hues, as this will render content illegible. Consider using online contrast checkers to verify compliance. In interactive elements, provide clear visual cues beyond color alone to indicate state (e.g., focus, hover, active) for users with color blindness.
Shades
Digital Color Formats
Alternative colors
Applications
Web Design
In web design, #00309B can be used for primary navigation elements, headers, and call-to-action buttons to create a sense of trust and authority. Its boldness makes it suitable for highlighting important information or creating a strong visual hierarchy. However, it should be used judiciously to avoid overwhelming the user, and always tested against accessibility standards for legibility and usability. Consider using it in combination with lighter, complementary colors to balance its intensity and create a visually appealing design.
Beauty & Fashion
In the beauty industry, #00309B, representing smalt, can inspire eye shadow palettes, eyeliner colors, and nail polish shades. This deep color evokes feelings of mystery and sophistication, perfect for creating bold and dramatic looks. It is commonly featured in evening wear makeup and artistic makeup designs, especially during fashion week. This vibrant blue can work as an accent or a primary colour.
Interior Design
This shade of blue can be used in interior design as an accent wall color, in furniture upholstery, or in decorative accessories such as vases, cushions, or curtains. In combination with white walls and light wood accents, #00309B can create a sophisticated, yet calm atmosphere. The color can be added in small portions to maintain the calming aspect of the room.