Ultramarine

#001298

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #001298, is a deep and intense shade of blue. It is often associated with qualities such as depth, stability, and wisdom. In the RGB color model, #001298 consists of 0% red, 7.1% green, and 59.6% blue. This composition gives it a strong presence in the blue spectrum, making it a cool and commanding color. Historically, ultramarine pigment was derived from the semi-precious stone lapis lazuli, making it a highly valued and expensive color. The name "ultramarine" literally means "beyond the sea," reflecting its origin from stones imported into Europe from Asia. Today, it is synthetically produced, allowing for wider accessibility. It has a luminance of 2.3% and a saturation of 100%.

The hex color #001298, also known as Ultramarine, presents significant accessibility challenges, primarily due to its very low luminance. When used as a foreground color against a white or light background, it offers insufficient contrast, making it difficult for users with visual impairments to read the text or distinguish elements. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal text and 3:1 for large text. Ultramarine fails to meet these standards in many common use cases. To improve accessibility, consider pairing it with much lighter colors such as whites, creams, or very light yellows. Avoid using it for essential interactive elements or important information without ensuring adequate contrast. Providing alternative high-contrast themes or allowing users to customize colors can also significantly enhance the user experience for everyone.

Shades

Digital Color Formats

RGB
0 18 152
RGB0 18 152
Red
Green
Blue
HSL
232.89deg 100% 29.8%
232.8910029.8HSL
Hue
Saturation
Lightness
HWB
232.89deg 0% 40.39%
232.89040.39HWB
Hue
Whiteness
Blackness
hex#001298
rgb0 18 152
hsl232.89deg 100% 29.8%
cmyk100% 88.16% 0% 40.39%
hwb232.89deg 0% 40.39%
xyz-d650.06 0.03 0.3
oklch0.3206 0.2039 264.23
oklab0.3206 -0.02 -0.2
CMYK
100% 88.16% 0% 40.39%
10088.16040.39CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.06 0.03 0.3
0.060.030.3XYZ
X
Y
Z
OKLCH
0.3206 0.2039 264.23
0.32060.2039264.23LCH
Lightness
Chroma
Hue
OKLAB
0.3206 -0.02 -0.2
0.3206-0.02-0.2LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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