Ultramarine

#1A0B99

General Information

Ultramarine, represented by the hexadecimal color code #1A0B99, is a deep, vivid shade of blue that evokes feelings of sophistication and depth. It belongs to the blue color family and is often associated with royalty, wisdom, and tranquility. This color is created by combining a small amount of red and green light, and a significant amount of blue light. In the RGB color model, it consists of 10.2% red, 4.3% green, and 60% blue. In the CMYK color model, it comprises 83% cyan, 91% magenta, 0% yellow, and 40% black. Ultramarine has a long history, originally derived from the rare and expensive mineral lapis lazuli. Today, it is synthetically produced and widely used in various applications, ranging from art and design to cosmetics and textiles.

The color #1a0b99, also known as Ultramarine, presents accessibility challenges due to its dark hue. When used as a background color, it necessitates light-colored text to ensure sufficient contrast for readability. A contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text to meet WCAG (Web Content Accessibility Guidelines) AA standards. Tools like contrast checkers can help verify compliance. For users with visual impairments, relying solely on color to convey information is discouraged; supplementary cues like text labels or icons should be provided. In situations where Ultramarine serves as a primary interactive element color (e.g., buttons or links), the color difference between the normal, hover, and active states must be distinct and discernible. Careful consideration of colorblindness is crucial, and simulating color vision deficiencies can aid in identifying potential issues.

Shades

Digital Color Formats

RGB
26 11 153
RGB26 11 153
Red
Green
Blue
HSL
246.34deg 86.59% 32.16%
246.3486.5932.16HSL
Hue
Saturation
Lightness
HWB
246.34deg 4.31% 40%
246.344.3140HWB
Hue
Whiteness
Blackness
hex#1A0B99
rgb26 11 153
hsl246.34deg 86.59% 32.16%
cmyk83.01% 92.81% 0% 40%
hwb246.34deg 4.31% 40%
xyz-d650.06 0.03 0.3
oklch0.3254 0.2029 270.36
oklab0.3254 0 -0.2
CMYK
83.01% 92.81% 0% 40%
83.0192.81040CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.03 0.3
0.060.030.3XYZ
X
Y
Z
OKLCH
0.3254 0.2029 270.36
0.32540.2029270.36LCH
Lightness
Chroma
Hue
OKLAB
0.3254 0 -0.2
0.32540-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons