Ultramarine

#0D118B

General Information about Ultramarine (#0D118B)

The color #0D118B, also known as Ultramarine, is a deep and intense shade of blue, evoking feelings of sophistication and mystery. Its hexadecimal code signifies a composition of red, green, and blue light, with very low red and green values (0D and 11, respectively) and a dominant blue value (8B). Ultramarine's historical significance stems from its origin as a pigment derived from lapis lazuli, a precious stone, making it one of the most expensive and highly prized pigments during the medieval and Renaissance periods. Because of its cost and brilliance, it was often reserved for the robes of the Virgin Mary in religious paintings. Today, synthetic Ultramarine is widely available, making this color accessible for a variety of applications. It is commonly used in design to convey trust, stability, and depth.

The color #0D118B, also known as Ultramarine, presents significant accessibility challenges, particularly in text-based contexts. Its very dark hue results in low contrast against lighter backgrounds, making it difficult for individuals with visual impairments to read text rendered in this color. To ensure accessibility, it is essential to pair Ultramarine with very light colors such as white (#FFFFFF) or very light grays. Tools such as WCAG contrast checkers can assist in verifying that the contrast ratio meets accessibility standards (ideally a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text). When used for interactive elements like buttons or links, sufficient visual cues beyond color alone should be provided to accommodate users who are colorblind. Additionally, avoid using this color for critical information without redundant cues to ensure usability for all users. Thoughtful consideration of color combinations and supplementary indicators is crucial for creating inclusive digital experiences.

Shades

Digital Color Formats

RGB
13 17 139
RGB13 17 139
Red
Green
Blue
HSL
238.1deg 82.89% 29.8%
238.182.8929.8HSL
Hue
Saturation
Lightness
HWB
238.1deg 5.1% 45.49%
238.15.145.49HWB
Hue
Whiteness
Blackness
hex#0D118B
rgb13 17 139
hsl238.1deg 82.89% 29.8%
cmyk90.65% 87.77% 0% 45.49%
hwb238.1deg 5.1% 45.49%
xyz-d650.05 0.02 0.25
oklch0.3059 0.1871 267.14
oklab0.3059 -0.01 -0.19
CMYK
90.65% 87.77% 0% 45.49%
90.6587.77045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3059 0.1871 267.14
0.30590.1871267.14LCH
Lightness
Chroma
Hue
OKLAB
0.3059 -0.01 -0.19
0.3059-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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