Color

#173c92

#173c92
hex#173c92
rgbrgb(23, 60, 146)
hslhsl(222, 73%, 33%)
oklchoklch(0.388 0.148 263.4)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0549

Colors that go with #173c92

Charcoal, Steel Blue and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#926d17

#177992 · #2f1792

#92173c · #3c9217

Split-complementary

Open in tool →

#922f17 · #799217

#921779 · #926d17 · #17922f

Contrast

#173c92 as textRatioAAAA largeAAAFix
Aaon white
10.01:1passpasspassPasses AAA — no fix needed.
Aaon black
2.1:1failfailfail
  • AA: use #3d6ee1 as the text (4.52:1)
  • AAA: use #7296e9 as the text (7.25:1)
  • AA: or shift the background to #b0b0b0 (4.62:1)
  • AAA: or shift the background to #d9d9d9 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #173c92 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#173c92 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #173c92
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #173c92 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/173c92-9ca3c4-df6e4e-211f2d-e9eff1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md