Traditional
Dark Indigo
Dark Indigo
#1A237EClick to copy
Dark Indigo Parameter Conversion Table
More converters →HEX#1A237ECopy
RGBrgb(26, 35, 126)Copy
HSLhsl(235, 66%, 30%)Copy
HSV/HSBhsv(235, 79%, 49%)Copy
CMYKcmyk(79%, 72%, 0%, 51%)Copy
Dark Indigo Color Schemes
Complementary
#1A237E
Click to copy#7E751A
Click to copyAnalogous
#1A557E
Click to copy#431A7E
Click to copySplit Complementary
#7E431A
Click to copy#557E1A
Click to copyMonochromatic
#1A237E
Click to copy#3E4AC0
Click to copy#8B92D9
Click to copy#090C29
Click to copy#000000
Click to copy#000000
Click to copyDark Indigo 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
13.24 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Black background #000000
1.59 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Light gray background #F5F5F5
12.15 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Dark gray background #333333
1.05 : 1
AA NormalAA LargeAAA NormalAAA Large
Dark Indigo Shade Variants
Gradient Generator →Lighten with White Mixed with white for a lighter, softer color
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Darken with Black Mixed with black for a deeper, heavier color
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Muted / Morandi Mixed with gray and desaturated for a sophisticated muted tone
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Dark Indigo Color Introduction
Definition
Dark Indigo (HEX #1A237E) has the RGB value rgb(26, 35, 126), the HSL value hsl(235°, 66%, 30%) and the CMYK print value cmyk(79%, 72%, 0%, 51%). In terms of color schemes, the complement of Dark Indigo is #7E751A, and placing the two side by side produces a striking, eye-catching contrast; paired with the analogous colors #1A557E and #431A7E that sit next to it on the color wheel, it transitions naturally and harmoniously; in a split-complementary scheme (#7E431A, #557E1A) it keeps its contrast tension without losing layering; and a monochromatic scheme built on Dark Indigo uses gradients of lightness and saturation to create a unified design with a strong sense of depth. Under the WCAG accessibility standard, Dark Indigo has a contrast ratio of 13.24:1 against white and 1.59:1 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, Dark Indigo has a lightness of 30% and a saturation of 66%, steady and powerful as a background or primary color, pairing well with light text for good readability; moreover, its saturation is moderate, keeping the color’s emotional expression without becoming overly assertive. In a word: A deep cyan made from indigo dye, rich in color; commonly used in traditional batik, blue calico prints, and folk clothing.
Color Psychology
Blue can evoke calm, focus and trust, with a marked stabilizing effect; psychologically it symbolizes reason, loyalty and depth. For this reason Dark Indigo 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, Dark Indigo 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.
Dark Indigo 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.
