Ultramarine

#1B0C8F

About Ultramarine (#1B0C8F)

The hexadecimal color code #1B0C8F represents a deep shade of ultramarine, a color historically derived from the precious mineral lapis lazuli. In the RGB (Red, Green, Blue) color model, it consists of 10.6% red, 4.7% green, and 56.1% blue. In the CMYK (Cyan, Magenta, Yellow, Black) color model, which is typically used for printing, its composition is 81% cyan, 91% magenta, 0% yellow, and 44% black. This intense blue hue is often associated with royalty, wisdom, and spirituality. Ultramarine possesses a strong presence, capable of evoking feelings of calmness and depth. Its high blue component lends itself well to creating a sense of vastness and serenity, reminiscent of the open sky or the deep sea.

The color #1B0C8F, a deep ultramarine, presents several accessibility considerations for web development. Its low luminance necessitates careful pairing with contrasting colors to ensure readability. White or very light shades of yellow or green would serve well as foreground text on a #1B0C8F background, meeting WCAG (Web Content Accessibility Guidelines) requirements for color contrast. Insufficient contrast can exclude users with visual impairments. Moreover, relying solely on color to convey information is discouraged. Using supplementary cues like text labels or icons alongside color-coding enhances accessibility for individuals with color vision deficiencies. When used for interactive elements like buttons or links, consider hover and focus states to provide clear visual feedback, ensuring usability for all users, including those navigating with keyboards or assistive technologies. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is recommended.

Shades

Digital Color Formats

RGB
27 12 143
RGB27 12 143
Red
Green
Blue
HSL
246.87 84.52% 30.39%
246.8784.5230.39HSL
Hue
Saturation
Lightness
HWB
246.87 4.71% 43.92%
246.874.7143.92HWB
Hue
Whiteness
Blackness
hex#1B0C8F
rgb27 12 143
hsl246.87 84.52% 30.39%
cmyk81.12% 91.61% 0% 43.92%
hwb246.87 4.71% 43.92%
xyz5.54 2.48 26.17
CMYK
81.12% 91.61% 0% 43.92%
81.1291.61043.92CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.54 2.48 26.17
5.542.4826.17XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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