Ultramarine

#170C8F

General Information about Ultramarine

Ultramarine, represented by the hexadecimal code #170C8F, is a deep shade of blue that evokes feelings of serenity, wisdom, and stability. Historically, it was derived from the precious stone lapis lazuli, making it one of the most expensive and highly prized pigments used by Renaissance artists. The name "ultramarine" literally means "beyond the sea," reflecting its origin from across the seas. Today, it is synthetically produced, making it more accessible. In the RGB color model, #170C8F consists of 9.02% red, 4.71% green, and 56.08% blue. Its hue angle is 246.7 degrees, saturation is 83.21%, and lightness is 30.39%. This rich and captivating color continues to be valued in various applications, from art and design to fashion and branding, due to its depth and sophistication.

The color #170C8F, a deep ultramarine, presents some accessibility challenges. Its low luminance of 2.46 cd/m² results in a very low contrast ratio of 3.01:1 against white, failing WCAG standards for normal text (4.5:1) and large text (3:1). Using this color for text on a white background would be difficult for users with visual impairments to read. To improve accessibility, consider using a lighter background color or a lighter shade of blue. Alternatively, pair #170C8F with a vibrant, contrasting color like yellow or orange for graphical elements, ensuring sufficient size and clear distinction. Providing alternative text descriptions for images or using ARIA attributes can further enhance accessibility for screen reader users. When using this color in interactive elements, ensure that sufficient visual cues are present to indicate focus and state changes. Testing with accessibility tools can help identify and address potential issues before deployment.

Shades

Digital Color Formats

RGB
23 12 143
RGB23 12 143
Red
Green
Blue
HSL
245.04 84.52% 30.39%
245.0484.5230.39HSL
Hue
Saturation
Lightness
HWB
245.04 4.71% 43.92%
245.044.7143.92HWB
Hue
Whiteness
Blackness
hex#170C8F
rgb23 12 143
hsl245.04 84.52% 30.39%
cmyk83.92% 91.61% 0% 43.92%
hwb245.04 4.71% 43.92%
xyz5.44 2.43 26.17
CMYK
83.92% 91.61% 0% 43.92%
83.9291.61043.92CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.44 2.43 26.17
5.442.4326.17XYZ
X
Y
Z

Alternative colors

Applications

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