Ultramarine

#1C0C8C

About Ultramarine (#1C0C8C)

The hexadecimal color code #1C0C8C, also known as Ultramarine, represents a dark shade of blue in the RGB color model. It is composed of 11% red, 5% green, and 55% blue. In the CMYK color model, which is used for printing, it consists of 80% cyan, 94% magenta, 0% yellow, and 45% black. Ultramarine is often associated with feelings of depth, stability, and sophistication. The color name derives from the pigment originally made from lapis lazuli, a semi-precious stone. This pigment was highly valued and used by Renaissance painters. Today, synthetic ultramarine is widely available and used in various applications, from paints to plastics. Due to its dark nature, Ultramarine is best used as an accent color or in situations where a strong, grounding color is desired.

The color #1C0C8C, a deep ultramarine, presents significant accessibility challenges, particularly in text-based applications. Its low luminance value of 2 means that it has very little contrast against light backgrounds like white or light yellow. According to WCAG guidelines, sufficient contrast is crucial for readability, especially for users with visual impairments. When using #1C0C8C for text, it is imperative to pair it with a very light color for the background. Conversely, using it as a background color requires a very light text color such as white (#FFFFFF) or a very light gray to ensure that the contrast ratio meets accessibility standards. Tools like contrast checkers can assist in verifying compliance with WCAG guidelines, aiming for a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Furthermore, avoid using this color for crucial interactive elements like buttons or links without proper contrast, as this can hinder usability for a significant portion of users.

Shades

Digital Color Formats

RGB
28 12 140
RGB28 12 140
Red
Green
Blue
HSL
247.5deg 84.21% 29.8%
247.584.2129.8HSL
Hue
Saturation
Lightness
HWB
247.5deg 4.71% 45.1%
247.54.7145.1HWB
Hue
Whiteness
Blackness
hex#1C0C8C
rgb28 12 140
hsl247.5deg 84.21% 29.8%
cmyk80% 91.43% 0% 45.1%
hwb247.5deg 4.71% 45.1%
xyz-d650.05 0.02 0.25
oklch0.31 0.1873 272.29
oklab0.31 0.01 -0.19
CMYK
80% 91.43% 0% 45.1%
8091.43045.1CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.31 0.1873 272.29
0.310.1873272.29LCH
Lightness
Chroma
Hue
OKLAB
0.31 0.01 -0.19
0.310.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons