Ultramarine

#1C03B0

General Information about Ultramarine

The hex color #1C03B0, also known as Ultramarine, is a deep and vibrant shade of blue. It belongs to the blue color family and is characterized by its rich and intense tone. In the RGB color model, #1C03B0 is composed of 11% red, 1.2% green, and 69% blue. This combination creates a color that is both captivating and calming. Ultramarine has a long history, dating back to ancient times when it was derived from the semi-precious stone lapis lazuli. It was highly valued and often used in paintings, particularly during the Renaissance period. Today, ultramarine is widely used in various fields, including art, design, and fashion, and is synthetically produced.

The hex color #1C03B0, a deep ultramarine, presents several accessibility considerations for web developers. Due to its low luminance value, it's crucial to ensure sufficient contrast when using it for text or interactive elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text (14pt bold or 18pt regular) against its background. Using a light color such as white, yellow, or a light shade of green or cyan can improve readability and overall user experience. It is also important to avoid using this color alone to convey important information, as users with color vision deficiencies may not be able to distinguish it effectively. Provide additional cues such as text labels, icons, or patterns to ensure information is accessible to all users, regardless of their visual abilities. Proper color contrast is paramount for creating inclusive and user-friendly web applications.

Shades

Digital Color Formats

RGB
28 3 176
RGB28 3 176
Red
Green
Blue
HSL
248.67 96.65% 35.1%
248.6796.6535.1HSL
Hue
Saturation
Lightness
HWB
248.67 1.18% 30.98%
248.671.1830.98HWB
Hue
Whiteness
Blackness
hex#1C03B0
rgb28 3 176
hsl248.67 96.65% 35.1%
cmyk84.09% 98.3% 0% 30.98%
hwb248.67 1.18% 30.98%
xyz8.35 3.45 41.3
CMYK
84.09% 98.3% 0% 30.98%
84.0998.3030.98CMYK
Cyan
Magenta
Yellow
Key
XYZ
8.35 3.45 41.3
8.353.4541.3XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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