Ultramarine

#0C178E

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #0C178E, is a deep, rich blue color with a slight hint of violet. Its name is derived from the Latin 'ultramarinus', meaning 'beyond the sea', as it was originally imported from minerals found overseas. Historically, ultramarine was one of the most expensive and highly prized pigments, often used in Renaissance paintings to depict the robes of the Virgin Mary due to its association with purity and divinity. Today, synthetic ultramarine is readily available, making it a more accessible color for various applications. In the RGB color model, #0C178E consists of 4.71% red, 9.02% green, and 55.69% blue. In the CMYK color model, it comprises 91.53% cyan, 83.72% magenta, 0% yellow, and 44.31% black. Ultramarine is often associated with depth, stability, and authority, making it a popular choice for branding and design where these qualities are desired.

The color #0C178E, also known as Ultramarine, presents significant accessibility challenges, particularly in text-based applications. Its dark hue results in low contrast against standard light backgrounds, making it difficult for users with visual impairments to read text rendered in this color. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Ultramarine often falls short of these benchmarks when paired with common background colors like white or light gray. To improve accessibility, consider using Ultramarine sparingly, especially for crucial information. When it is necessary to use it for text, ensure that a sufficiently light color is used as the background. Additionally, avoid using Ultramarine for small or intricate graphical elements, as its lack of contrast can make them difficult to discern for users with low vision or color blindness. Providing alternative color schemes can further enhance accessibility for users with specific visual needs.

Shades

Digital Color Formats

RGB
12 23 142
RGB12 23 142
Red
Green
Blue
HSL
234.92deg 84.42% 30.2%
234.9284.4230.2HSL
Hue
Saturation
Lightness
HWB
234.92deg 4.71% 44.31%
234.924.7144.31HWB
Hue
Whiteness
Blackness
hex#0C178E
rgb12 23 142
hsl234.92deg 84.42% 30.2%
cmyk91.55% 83.8% 0% 44.31%
hwb234.92deg 4.71% 44.31%
xyz-d650.05 0.03 0.26
oklch0.3161 0.1864 266.61
oklab0.3161 -0.01 -0.19
CMYK
91.55% 83.8% 0% 44.31%
91.5583.8044.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.03 0.26
0.050.030.26XYZ
X
Y
Z
OKLCH
0.3161 0.1864 266.61
0.31610.1864266.61LCH
Lightness
Chroma
Hue
OKLAB
0.3161 -0.01 -0.19
0.3161-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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