Ultramarine

#01039A

About Ultramarine (#01039A)

The hex color code #01039A represents a deep shade of blue, often referred to as ultramarine. In the RGB (Red, Green, Blue) color model, it is composed of 0.4% red, 1.2% green, and 60.4% blue. This composition places it firmly within the blue color spectrum, known for its association with calmness, trust, and stability. Ultramarine, in particular, has historical significance, derived from the precious pigment made from lapis lazuli. Its rich and intense hue has been prized by artists throughout history. In modern applications, this shade of blue is often used to convey a sense of sophistication and professionalism. It is a versatile color that can be used in various design contexts, from branding to web design, although its darkness requires careful consideration of contrast and accessibility.

The color #01039A, a deep ultramarine, presents significant accessibility challenges. Its low luminance value (very dark) means that text or interactive elements using this color as a background require extremely light foreground colors to meet WCAG (Web Content Accessibility Guidelines) contrast ratios. For standard text (AA compliance), a contrast ratio of 4.5:1 is needed, and for large text (14pt bold or 18pt regular, AA compliance), a ratio of 3:1 is required. Given the darkness of ultramarine, achieving these ratios may necessitate using nearly white text, which can sometimes create a harsh visual experience. Careful consideration must be given to color pairings and potential user needs, including those with visual impairments. AAA compliance, demanding even higher contrast ratios, will be exceptionally difficult to achieve with this color. It is recommended to use color contrast tools to verify compliance, and user testing is vital to ensure readability and usability.

Shades

Digital Color Formats

RGB
1 3 154
RGB1 3 154
Red
Green
Blue
HSL
239.22 98.71% 30.39%
239.2298.7130.39HSL
Hue
Saturation
Lightness
HWB
239.22 0.39% 39.61%
239.220.3939.61HWB
Hue
Whiteness
Blackness
hex#01039A
rgb1 3 154
hsl239.22 98.71% 30.39%
cmyk99.35% 98.05% 0% 39.61%
hwb239.22 0.39% 39.61%
xyz5.88 2.4 30.73
CMYK
99.35% 98.05% 0% 39.61%
99.3598.05039.61CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.88 2.4 30.73
5.882.430.73XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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