Ultramarine

#150A8E

General Information about Ultramarine

The color #150A8E, known as Ultramarine, is a deep, saturated blue hue that exudes sophistication and elegance. It belongs to the blue color family and is often associated with qualities such as trust, stability, and intelligence. In the RGB color model, it is composed of 8.24% red, 3.92% green, and 55.69% blue. This specific combination gives it a rich, almost royal, appearance. Ultramarine has historical significance, as it was originally derived from the precious gemstone lapis lazuli, making it a highly valued pigment in art for centuries. Its name comes from the Latin "ultramarinus," meaning "beyond the sea," as the pigment was imported to Europe from Asia. Today, synthetic versions are widely available, making it more accessible for various applications.

The hex color #150A8E, also known as Ultramarine, presents some accessibility challenges, especially concerning text and interactive elements. Due to its dark nature, using it as a background color requires careful consideration of foreground text colors. A light color, such as white (#FFFFFF) or a very light yellow (#FFFFE0), is essential to ensure sufficient contrast for readability. 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 to meet AA compliance. For optimal accessibility and AAA compliance, aim for a contrast ratio of 7:1. When using #150A8E for buttons or links, providing clear visual cues such as hover effects, underlines, or increased font weight can further enhance usability. Ensure that the focus state is also clearly visible to aid keyboard navigation for users with disabilities. Testing with accessibility evaluation tools is highly recommended to validate contrast and ensure compliance with accessibility standards, providing an inclusive user experience.

Shades

Digital Color Formats

RGB
21 10 142
RGB21 10 142
Red
Green
Blue
HSL
245deg 86.84% 29.8%
24586.8429.8HSL
Hue
Saturation
Lightness
HWB
245deg 3.92% 44.31%
2453.9244.31HWB
Hue
Whiteness
Blackness
hex#150A8E
rgb21 10 142
hsl245deg 86.84% 29.8%
cmyk85.21% 92.96% 0% 44.31%
hwb245deg 3.92% 44.31%
xyz-d650.05 0.02 0.26
oklch0.3073 0.1925 269.51
oklab0.3073 0 -0.19
CMYK
85.21% 92.96% 0% 44.31%
85.2192.96044.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.26
0.050.020.26XYZ
X
Y
Z
OKLCH
0.3073 0.1925 269.51
0.30730.1925269.51LCH
Lightness
Chroma
Hue
OKLAB
0.3073 0 -0.19
0.30730-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons