Ultramarine

#0D0D8A

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #0D0D8A, is a deep blue color with a rich history. The term "ultramarine" originates from the Latin "ultramarinus," meaning "beyond the sea," as the pigment was originally imported from mines in Afghanistan by sea. Historically, it was made from the semi-precious stone lapis lazuli, making it one of the most expensive pigments used by Renaissance artists. Today, synthetic ultramarine is widely available, offering the same vibrant blue hue at a more affordable cost. In color theory, ultramarine is considered a cool color, often associated with calmness, stability, and depth. It is frequently used to convey trust, authority, and sophistication in various design applications.

The color #0D0D8A, also known as Ultramarine, presents some accessibility challenges, particularly in web design. Its dark hue results in low contrast against lighter backgrounds, which can make text difficult to read for users with visual impairments. According to WCAG guidelines, sufficient contrast is crucial for readability. To ensure accessibility, it's recommended to use #0D0D8A with very light colors like #FFFFFF or #F0F0F0 for text or interactive elements. Using online contrast checkers can help determine if the contrast ratio meets accessibility standards. Additionally, avoid using #0D0D8A for crucial interface elements without proper contrast, as this could exclude users with low vision or color blindness. Offering alternative color themes can also improve accessibility for a wider range of users.

Shades

Digital Color Formats

RGB
13 13 138
RGB13 13 138
Red
Green
Blue
HSL
240deg 82.78% 29.61%
24082.7829.61HSL
Hue
Saturation
Lightness
HWB
240deg 5.1% 45.88%
2405.145.88HWB
Hue
Whiteness
Blackness
hex#0D0D8A
rgb13 13 138
hsl240deg 82.78% 29.61%
cmyk90.58% 90.58% 0% 45.88%
hwb240deg 5.1% 45.88%
xyz-d650.05 0.02 0.24
oklch0.3008 0.1885 267.27
oklab0.3008 -0.01 -0.19
CMYK
90.58% 90.58% 0% 45.88%
90.5890.58045.88CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.24
0.050.020.24XYZ
X
Y
Z
OKLCH
0.3008 0.1885 267.27
0.30080.1885267.27LCH
Lightness
Chroma
Hue
OKLAB
0.3008 -0.01 -0.19
0.3008-0.01-0.19LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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