Ultramarine

#1B0D8B

General Information about #1B0D8B

The hexadecimal color #1B0D8B, also known as Ultramarine, is a dark and rich shade of blue, often associated with depth, stability, and sophistication. In the RGB color model, it is composed of 10.6% red, 5.1% green, and 54.5% blue. Its high blue component gives it its distinctive deep blue hue. Ultramarine's historical significance stems from its origins as a pigment derived from the precious mineral lapis lazuli, making it a prized color in art and decoration for centuries. The color is often used to evoke feelings of trust, security, and authority, making it a popular choice in branding and design for industries such as finance, technology, and healthcare.

The color #1B0D8B, a deep shade of ultramarine, presents some accessibility challenges, particularly in text applications. Due to its low lightness value, it requires careful consideration of contrast ratios. When used as a text color, it is crucial to pair it with a very light background to ensure sufficient contrast for readability, ideally aiming for a contrast ratio of at least 4.5:1 as recommended by WCAG guidelines. This is especially important for users with visual impairments. Alternatively, using it for larger graphical elements, such as backgrounds or accents, can be more forgiving, but even then, surrounding elements must be chosen thoughtfully to maintain overall visual clarity and avoid eye strain. Consider providing alternative color schemes to enhance accessibility for a broader audience.

Shades

Digital Color Formats

RGB
27 13 139
RGB27 13 139
Red
Green
Blue
HSL
246.67deg 82.89% 29.8%
246.6782.8929.8HSL
Hue
Saturation
Lightness
HWB
246.67deg 5.1% 45.49%
246.675.145.49HWB
Hue
Whiteness
Blackness
hex#1B0D8B
rgb27 13 139
hsl246.67deg 82.89% 29.8%
cmyk80.58% 90.65% 0% 45.49%
hwb246.67deg 5.1% 45.49%
xyz-d650.05 0.02 0.25
oklch0.3089 0.1859 271.94
oklab0.3089 0.01 -0.19
CMYK
80.58% 90.65% 0% 45.49%
80.5890.65045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3089 0.1859 271.94
0.30890.1859271.94LCH
Lightness
Chroma
Hue
OKLAB
0.3089 0.01 -0.19
0.30890.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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