Ultramarine

#0900A3

General Information about Ultramarine

Ultramarine (#0900A3) is a deep, saturated blue color that sits towards the violet end of the blue spectrum. Historically, ultramarine pigment was derived from the precious gemstone lapis lazuli, making it an expensive and highly prized color, often associated with royalty and religious figures. In modern color theory, #0900A3 is defined by its RGB (Red, Green, Blue) values of Red: 9, Green: 0, Blue: 163. This translates to a very low red and green component with a dominant blue component. Its hexadecimal code is a standard representation used in web design and digital applications. The color exudes a sense of depth, mystery, and sophistication and is known to evoke feelings of calmness and stability.

The color #0900A3, a deep ultramarine, presents significant accessibility challenges, primarily due to its low luminance. When used as a background color, it demands very light text to ensure sufficient contrast for readability. A contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text (14pt bold or 18pt regular). This ratio is crucial for users with visual impairments. Using online contrast checkers is highly advised to verify compliance with WCAG guidelines. Furthermore, avoid using this color for essential interactive elements like links or buttons without clear visual cues, as users may struggle to identify them. Thoughtful consideration of text size, weight, and surrounding elements is vital to make content accessible to all users. For optimal accessibility, consider pairing it with colors from the yellow spectrum.

Shades

Digital Color Formats

RGB
9 0 163
RGB9 0 163
Red
Green
Blue
HSL
243.31 100% 31.96%
243.3110031.96HSL
Hue
Saturation
Lightness
HWB
243.31 0% 36.08%
243.31036.08HWB
Hue
Whiteness
Blackness
hex#0900A3
rgb9 0 163
hsl243.31 100% 31.96%
cmyk94.48% 100% 0% 36.08%
hwb243.31 0% 36.08%
xyz6.72 2.7 34.82
CMYK
94.48% 100% 0% 36.08%
94.48100036.08CMYK
Cyan
Magenta
Yellow
Key
XYZ
6.72 2.7 34.82
6.722.734.82XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

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