Ultramarine

#00139B

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #00139B, is a deep blue color reminiscent of the pigment derived from lapis lazuli. Historically, ultramarine pigment was highly prized and expensive, making it a color associated with royalty and high art. In the RGB color model, it is composed of 0% red, 7.45% green, and 61.18% blue. Its perceived coolness makes it useful for conveying feelings of tranquility and serenity. In modern applications, ultramarine is used across various fields, including digital design, fashion, and interior decoration, where its depth and richness can add a touch of sophistication. The color is most suitable for large areas, as it can appear quite dark if used in small portions.

The color #00139B, a deep ultramarine, presents some accessibility challenges, especially for users with visual impairments. Its low luminance value means that text rendered in this color requires high contrast against a light background to be legible. A contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text, as per WCAG guidelines. When using this color for interactive elements, ensure sufficient visual cues beyond color alone, such as text labels or icons. Additionally, consider providing alternative color schemes that offer better contrast for users with specific visual needs. Thorough testing with accessibility tools is crucial to validate the design's usability for all users. It's also worth considering using a lighter tint of ultramarine or a completely different color for essential interactive elements to guarantee optimal accessibility.

Shades

Digital Color Formats

RGB
0 19 155
RGB0 19 155
Red
Green
Blue
HSL
232.65deg 100% 30.39%
232.6510030.39HSL
Hue
Saturation
Lightness
HWB
232.65deg 0% 39.22%
232.65039.22HWB
Hue
Whiteness
Blackness
hex#00139B
rgb0 19 155
hsl232.65deg 100% 30.39%
cmyk100% 87.74% 0% 39.22%
hwb232.65deg 0% 39.22%
xyz-d650.06 0.03 0.31
oklch0.3256 0.2065 264.23
oklab0.3256 -0.02 -0.21
CMYK
100% 87.74% 0% 39.22%
10087.74039.22CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.03 0.31
0.060.030.31XYZ
X
Y
Z
OKLCH
0.3256 0.2065 264.23
0.32560.2065264.23LCH
Lightness
Chroma
Hue
OKLAB
0.3256 -0.02 -0.21
0.3256-0.02-0.21LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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