Ultramarine

#00039B

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #00039B, is a deep and rich shade of blue. Historically, ultramarine was derived from the precious gemstone lapis lazuli, making it one of the most expensive and highly prized pigments. The name "ultramarine" literally means "beyond the sea," referring to its origin from lands beyond the sea from Europe. In modern color theory, ultramarine is considered a primary color, essential for creating a wide range of other colors through mixing. It is known for its excellent lightfastness and color stability, making it a popular choice for artists and designers alike. Ultramarine blue is commonly used to represent depth, stability, and trust.

The color #00039B, a deep ultramarine, presents significant accessibility challenges due to its extremely low luminance. When used as text against a white background, it fails all levels of WCAG contrast ratio guidelines, making it difficult for users with visual impairments to read. Similarly, using white text on this dark blue background may not provide sufficient contrast for some users. To improve accessibility, consider using a much lighter color for text or interactive elements on this background. Alternatively, this color might be more suitable for purely decorative purposes where readability isn't critical. Careful consideration of color contrast is crucial to ensure that digital content is accessible to all users, regardless of their visual abilities. It is important to ensure sufficient contrast between foreground and background elements.

Shades

Digital Color Formats

RGB
0 3 155
RGB0 3 155
Red
Green
Blue
HSL
238.84 100% 30.39%
238.8410030.39HSL
Hue
Saturation
Lightness
HWB
238.84 0% 39.22%
238.84039.22HWB
Hue
Whiteness
Blackness
hex#00039B
rgb0 3 155
hsl238.84 100% 30.39%
cmyk100% 98.06% 0% 39.22%
hwb238.84 0% 39.22%
xyz5.95 2.43 31.17
CMYK
100% 98.06% 0% 39.22%
10098.06039.22CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.95 2.43 31.17
5.952.4331.17XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

Buttons

HexColo.rs © 2025