Ultramarine

#0A0593

General Information

Ultramarine, represented by the hexadecimal color code #0A0593, is a deep, rich shade of blue that evokes feelings of sophistication, depth, and tranquility. It is a color often associated with royalty, intelligence, and stability. In the RGB color model, #0A0593 is composed of 3.92% red, 1.96% green, and 57.65% blue. This high concentration of blue gives the color its characteristic intense hue. In the CMYK color model, used primarily for printing, Ultramarine consists of 93% cyan, 97% magenta, 0% yellow, and 42% black. The name 'Ultramarine' originates from the Latin 'ultramarinus,' meaning 'beyond the sea,' as the pigment was originally imported from overseas, particularly from sources in Afghanistan. Historically, it was made from the precious stone lapis lazuli. Today, synthetic versions are available, making it more accessible for various applications.

The hex color #0A0593, also known as Ultramarine, presents significant accessibility challenges, particularly in text-based applications. Its very dark hue results in extremely low contrast against typical light backgrounds, such as white or light yellow. This low contrast makes text difficult to read for individuals with visual impairments, including those with low vision, color blindness, or age-related vision decline. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is required for normal-sized text and 3:1 for large text to meet Level AA compliance. Ultramarine, when paired with a standard light background, would likely fall far short of these recommendations. Therefore, web developers and designers should avoid using #0A0593 for text or crucial interface elements unless it is paired with a very light color to provide sufficient contrast. Thoughtful consideration of color contrast is essential to ensure inclusive and accessible digital experiences.

Shades

Digital Color Formats

RGB
10 5 147
RGB10 5 147
Red
Green
Blue
HSL
242.11deg 93.42% 29.8%
242.1193.4229.8HSL
Hue
Saturation
Lightness
HWB
242.11deg 1.96% 42.35%
242.111.9642.35HWB
Hue
Whiteness
Blackness
hex#0A0593
rgb10 5 147
hsl242.11deg 93.42% 29.8%
cmyk93.2% 96.6% 0% 42.35%
hwb242.11deg 1.96% 42.35%
xyz-d650.05 0.02 0.28
oklch0.3065 0.2031 266.29
oklab0.3065 -0.01 -0.2
CMYK
93.2% 96.6% 0% 42.35%
93.296.6042.35CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.28
0.050.020.28XYZ
X
Y
Z
OKLCH
0.3065 0.2031 266.29
0.30650.2031266.29LCH
Lightness
Chroma
Hue
OKLAB
0.3065 -0.01 -0.2
0.3065-0.01-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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