Ultramarine

#100890

General Information

The hex color #100890 is a dark shade of blue, specifically categorized as Ultramarine in the realm of color theory. This color is created by combining a small amount of red and green with a significant amount of blue. In the RGB (Red, Green, Blue) color model, it consists of 6.27% red, 3.14% green, and 56.47% blue. Its intensity and depth lend it a sense of sophistication and formality, making it suitable for various applications across design disciplines. Ultramarine, historically derived from the precious mineral lapis lazuli, has long been associated with royalty and prestige, influencing its perception in modern contexts. This hexadecimal color code represents a precise digital formulation of this classic pigment.

The color #100890, a deep ultramarine, presents significant accessibility challenges. Its dark nature results in very low contrast against lighter backgrounds, which is crucial for readability. Text or interactive elements using this color on a white or light-colored surface will likely fail WCAG (Web Content Accessibility Guidelines) standards for contrast ratio. For example, normal-sized text needs a contrast ratio of at least 4.5:1, while large text requires 3:1. This color also needs careful pairing with other colors. Combining it with similar dark hues can render elements illegible, especially for users with visual impairments. To improve accessibility, consider using #100890 sparingly, mainly for decorative purposes, and always ensure sufficient contrast with foreground elements by using very light color options. Tools such as contrast checkers can help determine if a color combination meets accessibility standards. Altering the color slightly towards a lighter shade can also substantially improve its accessibility.

Shades

Digital Color Formats

RGB
16 8 144
RGB16 8 144
Red
Green
Blue
HSL
243.53deg 89.47% 29.8%
243.5389.4729.8HSL
Hue
Saturation
Lightness
HWB
243.53deg 3.14% 43.53%
243.533.1443.53HWB
Hue
Whiteness
Blackness
hex#100890
rgb16 8 144
hsl243.53deg 89.47% 29.8%
cmyk88.89% 94.44% 0% 43.53%
hwb243.53deg 3.14% 43.53%
xyz-d650.05 0.02 0.27
oklch0.3065 0.197 267.87
oklab0.3065 -0.01 -0.2
CMYK
88.89% 94.44% 0% 43.53%
88.8994.44043.53CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.27
0.050.020.27XYZ
X
Y
Z
OKLCH
0.3065 0.197 267.87
0.30650.197267.87LCH
Lightness
Chroma
Hue
OKLAB
0.3065 -0.01 -0.2
0.3065-0.01-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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