Blue
Ultramarine
Ultramarine
#120A8FClick to copy
Ultramarine Parameter Conversion Table
More converters →HEX#120A8FCopy
RGBrgb(18, 10, 143)Copy
HSLhsl(244, 87%, 30%)Copy
HSV/HSBhsv(244, 93%, 56%)Copy
CMYKcmyk(87%, 93%, 0%, 44%)Copy
Ultramarine Color Schemes
Complementary
#120A8F
Click to copy#878F0A
Click to copyAnalogous
#0A458F
Click to copy#550A8F
Click to copySplit Complementary
#8F550A
Click to copy#458F0A
Click to copyMonochromatic
#120A8F
Click to copy#2F24DB
Click to copy#827BEA
Click to copy#060330
Click to copy#000000
Click to copy#000000
Click to copyUltramarine WCAG Accessibility Contrast
WCAG Calculator →The contrast ratio of this color against common foreground/background colors (based on the WCAG 2.1 standard)
Sample text Aa
White background #FFFFFF
14.33 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Black background #000000
1.47 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Light gray background #F5F5F5
13.14 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Dark gray background #333333
1.13 : 1
AA NormalAA LargeAAA NormalAAA Large
Ultramarine Shade Variants
Gradient Generator →Lighten with White Mixed with white for a lighter, softer color
10%
20%
30%
40%
50%
60%
70%
80%
90%
Darken with Black Mixed with black for a deeper, heavier color
10%
20%
30%
40%
50%
60%
70%
80%
90%
Muted / Morandi Mixed with gray and desaturated for a sophisticated muted tone
10%
20%
30%
40%
50%
60%
70%
80%
90%
Ultramarine Color Introduction
Definition
Ultramarine (HEX #120A8F) has the RGB value rgb(18, 10, 143), the HSL value hsl(244°, 87%, 30%) and the CMYK print value cmyk(87%, 93%, 0%, 44%). In terms of color schemes, the complement of Ultramarine is #878F0A, and placing the two side by side produces a striking, eye-catching contrast; paired with the analogous colors #0A448F and #540A8F that sit next to it on the color wheel, it transitions naturally and harmoniously; in a split-complementary scheme (#8F550A, #458F0A) it keeps its contrast tension without losing layering; and a monochromatic scheme built on Ultramarine uses gradients of lightness and saturation to create a unified design with a strong sense of depth. Under the WCAG accessibility standard, Ultramarine has a contrast ratio of 14.33:1 against white and 1.47:1 against black; paired with a white background it reaches AAA, making body text highly readable.
Color Characteristics
Blue is the color of sky and ocean, evoking vastness, trust and reason. Steady and imposing, it is almost irreplaceable in technology, finance and corporate identity design. Specifically, Ultramarine has a lightness of 30% and a saturation of 87%, steady and powerful as a background or primary color, pairing well with light text for good readability; moreover, its saturation is extremely high and its visual tension is strong, so it works best used sparingly as a focal accent. In a word: A treasure that crossed the seas.
Color Psychology
Blue can evoke calm, focus and trust, with a marked stabilizing effect; psychologically it symbolizes reason, loyalty and depth. For this reason Ultramarine tends to leave a first impression of being cool and reliable in the viewer’s mind, and this emotional tone also defines the role it plays in design.
Best Uses
Blue suits fintech, corporate websites, government systems and any scene that needs professional trust. In real projects, Ultramarine is also often used as a dark background or heading text color; in “Blue”-themed designs, the adjacent colors or lightness gradients built around it quickly establish a cohesive, clearly layered color scheme.
Ultramarine Featured In
This color is included in the following color cards and color families. Click a card to browse more colors in the corresponding collection.