Ultramarine

#1810A4

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #1810A4, is a deep, vivid blue pigment. Its name originates from the Latin 'ultramarinus,' meaning 'beyond the sea,' as it was originally derived from the precious stone lapis lazuli, imported from faraway lands, particularly Afghanistan. Historically, Ultramarine was highly valued and reserved for important works of art, often associated with royalty and religious figures. In modern times, synthetic versions are readily available, making it more accessible for various applications. It is categorized as a tertiary color, resulting from a blend of primary blue and secondary violet. Ultramarine is known for its exceptional lightfastness and color stability.

The accessibility of #1810A4 (Ultramarine) for web content needs careful consideration. Its dark hue results in low contrast against similarly dark backgrounds, making text or interactive elements difficult to read for users, especially those with visual impairments. A contrast ratio check is essential; ideally, it should meet WCAG guidelines (minimum 4.5:1 for normal text and 3:1 for large text). To improve accessibility, pair Ultramarine with significantly lighter colors like white (#FFFFFF) or very light grays. Avoid using it for critical information or calls to action unless sufficient contrast is ensured. Providing alternative color schemes that offer better contrast can greatly enhance usability for a broader audience. Testing with accessibility tools and user feedback is recommended.

Shades

Digital Color Formats

RGB
24 16 164
RGB24 16 164
Red
Green
Blue
HSL
243.24 82.22% 35.29%
243.2482.2235.29HSL
Hue
Saturation
Lightness
HWB
243.24 6.27% 35.69%
243.246.2735.69HWB
Hue
Whiteness
Blackness
hex#1810A4
rgb24 16 164
hsl243.24 82.22% 35.29%
cmyk85.37% 90.24% 0% 35.69%
hwb243.24 6.27% 35.69%
xyz7.26 3.25 35.37
CMYK
85.37% 90.24% 0% 35.69%
85.3790.24035.69CMYK
Cyan
Magenta
Yellow
Key
XYZ
7.26 3.25 35.37
7.263.2535.37XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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