Ultramarine

#150D8B

General Information about Ultramarine (#150D8B)

The hex color #150D8B, commonly known as Ultramarine, is a deep and intense shade of blue. It resides in the blue color family and is characterized by its high saturation and relatively low brightness. In the RGB color model, it is composed of 8.24% red, 5.1% green, and 54.51% blue. The term "Ultramarine" originates from the Latin "ultramarinus," meaning "beyond the sea," as the pigment was originally derived from lapis lazuli imported from Asia. Historically, Ultramarine was highly prized for its vibrant and lasting color, often used in Renaissance paintings. Today, synthetic versions are widely available, making it more accessible for various applications, ranging from art and design to textiles and cosmetics. Its rich hue evokes feelings of depth, serenity, and sophistication.

The hex color #150D8B, also known as Ultramarine, presents significant accessibility challenges, especially for users with visual impairments. Its low luminance value results in poor contrast against light backgrounds, making text and interface elements difficult to read. According to WCAG guidelines, sufficient contrast ratios are crucial for ensuring readability. To improve accessibility, consider using lighter text colors on this background or, conversely, using this color as a background for very light text. Providing alternative color schemes that offer better contrast can also enhance the user experience for individuals with low vision or color blindness. Tools like contrast checkers can help evaluate and adjust color combinations to meet accessibility standards. Always prioritize a design that is inclusive and usable by everyone, regardless of their abilities.

Shades

Digital Color Formats

RGB
21 13 139
RGB21 13 139
Red
Green
Blue
HSL
243.81deg 82.89% 29.8%
243.8182.8929.8HSL
Hue
Saturation
Lightness
HWB
243.81deg 5.1% 45.49%
243.815.145.49HWB
Hue
Whiteness
Blackness
hex#150D8B
rgb21 13 139
hsl243.81deg 82.89% 29.8%
cmyk84.89% 90.65% 0% 45.49%
hwb243.81deg 5.1% 45.49%
xyz-d650.05 0.02 0.25
oklch0.3056 0.1876 269.66
oklab0.3056 0 -0.19
CMYK
84.89% 90.65% 0% 45.49%
84.8990.65045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.25
0.050.020.25XYZ
X
Y
Z
OKLCH
0.3056 0.1876 269.66
0.30560.1876269.66LCH
Lightness
Chroma
Hue
OKLAB
0.3056 0 -0.19
0.30560-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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