Color

#173972

#173972
hex#173972
rgbrgb(23, 57, 114)
hslhsl(218, 66%, 27%)
oklchoklch(0.354 0.106 260.1)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0432

Colors that go with #173972

Steel Blue, Blue and Crimson 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 →

#725117

#176672 · #241772

#721739 · #397217

Split-complementary

Open in tool →

#722417 · #667217

#721766 · #725117 · #177224

Contrast

#173972 as textRatioAAAA largeAAAFix
Aaon white
11.26:1passpasspassPasses AAA — no fix needed.
Aaon black
1.86:1failfailfail
  • AA: use #3872d6 as the text (4.55:1)
  • AAA: use #6b96e1 as the text (7.07:1)
  • AA: or shift the background to #a6a6a6 (4.63:1)
  • AAA: or shift the background to #cccccc (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #173972 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#173972 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #173972
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 #173972 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/173972-9ca6c4-df644e-201f2d-e9f0f1?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