Ultramarine

#15179F

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #15179F, is a deep and vivid shade of blue. Historically, the term 'ultramarine' refers to a pigment derived from lapis lazuli, a semi-precious stone. This pigment was highly valued for its intense color and was often used in paintings, particularly during the Renaissance period. Today, synthetic ultramarine pigments are widely available, making the color more accessible. In color theory, ultramarine blue is considered a cool color, often associated with feelings of calmness, tranquility, and depth. It can evoke a sense of sophistication and is often used to convey trust and stability in branding and design.

The color #15179F, also known as Ultramarine, presents significant accessibility challenges due to its dark hue. When used as a background color, it necessitates very light text to ensure sufficient contrast for readability, adhering to WCAG guidelines. A contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text. Individuals with visual impairments might struggle to discern content against this dark background if contrast is insufficient. Careful consideration is needed for interactive elements like buttons and links, ensuring clear visual cues on hover or focus states. Furthermore, avoid using #15179F as the sole indicator of important information; supplement it with text labels or icons to accommodate users with color vision deficiencies.

Shades

Digital Color Formats

RGB
21 23 159
RGB21 23 159
Red
Green
Blue
HSL
239.13 76.67% 35.29%
239.1376.6735.29HSL
Hue
Saturation
Lightness
HWB
239.13 8.24% 37.65%
239.138.2437.65HWB
Hue
Whiteness
Blackness
hex#15179F
rgb21 23 159
hsl239.13 76.67% 35.29%
cmyk86.79% 85.53% 0% 37.65%
hwb239.13 8.24% 37.65%
xyz6.87 3.28 33.07
CMYK
86.79% 85.53% 0% 37.65%
86.7985.53037.65CMYK
Cyan
Magenta
Yellow
Key
XYZ
6.87 3.28 33.07
6.873.2833.07XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

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