Ultramarine

#170F89

General Information about Ultramarine

The hexadecimal color code #170F89 represents a shade of deep blue, often referred to as Ultramarine. It is composed of 9.02% red, 5.88% green, and 53.73% blue. In the RGB color model, this color is created by mixing relatively small amounts of red and green with a significant amount of blue. The corresponding CMYK color code is C:83, M:89, Y:0, K:46, indicating high concentrations of cyan and magenta with no yellow. This color evokes feelings of calmness, stability, and intelligence, often associated with trust and authority. Its name, Ultramarine, originates from the pigment's historical source – the mineral lapis lazuli, imported from overseas ('ultra' meaning beyond, and 'mare' meaning sea).

The color #170F89, also known as Ultramarine, presents some accessibility challenges, especially when used for text or interactive elements. Due to its dark hue and low luminance, it requires careful consideration of contrast ratios. According to WCAG guidelines, text should have a contrast ratio of at least 4.5:1 against its background for normal text and 3:1 for large text to meet AA compliance. For AAA compliance, the contrast ratios should be even higher, at 7:1 and 4.5:1, respectively. When using #170F89 as a background, ensure that any foreground text is a light color, such as white or a very pale yellow, to provide sufficient contrast. If using it for text, a very light background is necessary. Also, avoid using this color for small, detailed graphics or icons, as its darkness can make them difficult to discern, especially for users with visual impairments. Proper testing with accessibility tools and real users is recommended to ensure optimal usability.

Shades

Digital Color Formats

RGB
23 15 137
RGB23 15 137
Red
Green
Blue
HSL
243.93deg 80.26% 29.8%
243.9380.2629.8HSL
Hue
Saturation
Lightness
HWB
243.93deg 5.88% 46.27%
243.935.8846.27HWB
Hue
Whiteness
Blackness
hex#170F89
rgb23 15 137
hsl243.93deg 80.26% 29.8%
cmyk83.21% 89.05% 0% 46.27%
hwb243.93deg 5.88% 46.27%
xyz-d650.05 0.02 0.24
oklch0.3057 0.1836 270.47
oklab0.3057 0 -0.18
CMYK
83.21% 89.05% 0% 46.27%
83.2189.05046.27CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.05 0.02 0.24
0.050.020.24XYZ
X
Y
Z
OKLCH
0.3057 0.1836 270.47
0.30570.1836270.47LCH
Lightness
Chroma
Hue
OKLAB
0.3057 0 -0.18
0.30570-0.18LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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