Ultramarine

#100F8B

General Information About Ultramarine

Ultramarine, represented by the hex code #100F8B, is a deep blue color that derives its name from the Latin 'ultramarinus', meaning 'beyond the sea'. Historically, it was a pigment made from lapis lazuli, a rare and expensive stone, making it highly valued by artists. Today, synthetic ultramarine is widely available, retaining the color's characteristic richness and depth. In color theory, ultramarine is considered a cool color, often associated with tranquility, depth, and stability. It is frequently used to convey feelings of trust and authority, making it a popular choice for branding and visual communication. This color belongs to the blue color family and offers a balance between vibrancy and sophistication, making it a versatile option for various applications.

The contrast ratio of #100F8B (Ultramarine) with white is 12.87:1, which provides excellent readability and meets the WCAG AAA standard for text and background contrast. This means it's highly accessible for users with visual impairments. However, when paired with black, the contrast ratio drops to 1.63:1, which is insufficient for comfortable reading. Therefore, it's crucial to use #100F8B on light backgrounds or to adjust text size and weight to enhance readability. For graphical elements and user interface components, ensure a contrast ratio of at least 3:1 to meet WCAG AA standards. Consider using color contrast tools to verify the contrast ratio before deploying it in a live environment. Using this color thoughtfully can contribute to a more inclusive and user-friendly design.

Shades

Digital Color Formats

RGB
16 15 139
RGB16 15 139
Red
Green
Blue
HSL
240.48 80.52% 30.2%
240.4880.5230.2HSL
Hue
Saturation
Lightness
HWB
240.48 5.88% 45.49%
240.485.8845.49HWB
Hue
Whiteness
Blackness
hex#100F8B
rgb16 15 139
hsl240.48 80.52% 30.2%
cmyk88.49% 89.21% 0% 45.49%
hwb240.48 5.88% 45.49%
xyz5.04 2.32 24.61
CMYK
88.49% 89.21% 0% 45.49%
88.4989.21045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.04 2.32 24.61
5.042.3224.61XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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