Ultramarine

#0B0387

General Information about Ultramarine

The hex color code #0B0387 represents a deep, saturated shade of blue known as Ultramarine. It's created by combining a minimal amount of red and green with a significant amount of blue in the RGB color model. In the world of color theory, Ultramarine is often associated with depth, stability, and intelligence. Historically, Ultramarine was derived from the precious stone lapis lazuli, making it a highly valued pigment in art. Today, it's widely used across various digital and print media for branding, web design, and artistic expression. The color's intensity makes it ideal for creating focal points and adding a touch of sophistication to designs. However, its darkness also means it requires careful consideration of contrast to ensure readability and accessibility.

The color #0B0387, a deep ultramarine, presents some accessibility challenges. Its low luminance value means that text rendered in this color requires careful consideration of contrast ratios. According to WCAG guidelines, to ensure readability, text using #0B0387 needs to be paired with a very light color for sufficient contrast. A contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for larger text (14pt bold or 18pt regular). Using tools to check contrast ratios is essential. Avoid pairing this color with other dark shades as it can make content illegible for users, especially those with visual impairments. When used as a background, ensure that all interactive elements and text stand out clearly. Alternative solutions may involve slightly lightening the ultramarine shade or using a darker, contrasting color for improved readability.

Shades

Digital Color Formats

RGB
11 3 135
RGB11 3 135
Red
Green
Blue
HSL
243.64deg 95.65% 27.06%
243.6495.6527.06HSL
Hue
Saturation
Lightness
HWB
243.64deg 1.18% 47.06%
243.641.1847.06HWB
Hue
Whiteness
Blackness
hex#0B0387
rgb11 3 135
hsl243.64deg 95.65% 27.06%
cmyk91.85% 97.78% 0% 47.06%
hwb243.64deg 1.18% 47.06%
xyz-d650.05 0.02 0.23
oklch0.2881 0.1909 266.97
oklab0.2881 -0.01 -0.19
CMYK
91.85% 97.78% 0% 47.06%
91.8597.78047.06CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.23
0.050.020.23XYZ
X
Y
Z
OKLCH
0.2881 0.1909 266.97
0.28810.1909266.97LCH
Lightness
Chroma
Hue
OKLAB
0.2881 -0.01 -0.19
0.2881-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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