Color

#17356d

#17356d
hex#17356d
rgbrgb(23, 53, 109)
hslhsl(219, 65%, 26%)
oklchoklch(0.341 0.104 261.5)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0383

Colors that go with #17356d

Steel Blue, Blue and Cadet 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 →

#6d4f17

#17606d · #24176d

#6d1735 · #356d17

Split-complementary

Open in tool →

#6d2417 · #606d17

#6d1760 · #6d4f17 · #176d24

Contrast

#17356d as textRatioAAAA largeAAAFix
Aaon white
11.89:1passpasspassPasses AAA — no fix needed.
Aaon black
1.77:1failfailfail
  • AA: use #3d73d6 as the text (4.62:1)
  • AAA: use #7097e1 as the text (7.2:1)
  • AA: or shift the background to #a1a1a1 (4.6:1)
  • AAA: or shift the background to #c7c7c7 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #17356d as the background.

Brands using this color

Fonts for this mood

#17356d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #17356d
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 #17356d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/17356d-9ca5c4-df664e-211f2d-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