Ultramarine

#1C0A8E

General Information about Ultramarine

The hex color #1C0A8E, also known as Ultramarine, is a dark shade of blue with a strong presence. In the RGB color model, it is composed of 11.0% red, 3.92% green, and 55.69% blue. Ultramarine is often associated with feelings of calmness, depth, and sophistication. Historically, ultramarine pigment was derived from the gemstone lapis lazuli, making it a highly valued and expensive color, often reserved for important works of art. The color's association with royalty and spirituality is reflected in its use in religious paintings and heraldry. Today, synthetic ultramarine is widely available, making it a popular choice for various applications, from graphic design to fashion. Its deep blue hue evokes a sense of trust and authority. This pigment is very stable and does not fade on exposure to light.

The color #1C0A8E, a deep ultramarine, presents several accessibility considerations for web design. Its low lightness value can cause contrast issues when paired with similarly dark colors, making text or interactive elements difficult to read for users with visual impairments. According to WCAG guidelines, sufficient contrast is essential for readability. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. When using #1C0A8E as a background, ensure that the foreground text color provides adequate contrast. Lighter shades of yellow, white, or very light grays might work well. Tools like WebAIM's contrast checker can help determine compliance. Also, avoid using this color as the sole indicator for interactive elements, as users who are colorblind may not be able to distinguish them. Supplement color cues with text labels or icons for better accessibility. Remember to test your designs with users with different types of vision to ensure inclusivity.

Shades

Digital Color Formats

RGB
28 10 142
RGB28 10 142
Red
Green
Blue
HSL
248.18deg 86.84% 29.8%
248.1886.8429.8HSL
Hue
Saturation
Lightness
HWB
248.18deg 3.92% 44.31%
248.183.9244.31HWB
Hue
Whiteness
Blackness
hex#1C0A8E
rgb28 10 142
hsl248.18deg 86.84% 29.8%
cmyk80.28% 92.96% 0% 44.31%
hwb248.18deg 3.92% 44.31%
xyz-d650.05 0.02 0.26
oklch0.3112 0.1906 272.15
oklab0.3112 0.01 -0.19
CMYK
80.28% 92.96% 0% 44.31%
80.2892.96044.31CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.26
0.050.020.26XYZ
X
Y
Z
OKLCH
0.3112 0.1906 272.15
0.31120.1906272.15LCH
Lightness
Chroma
Hue
OKLAB
0.3112 0.01 -0.19
0.31120.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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