Color

#103575

#103575
hex#103575
rgbrgb(16, 53, 117)
hslhsl(218, 76%, 26%)
oklchoklch(0.345 0.118 260.6)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0394

Colors that go with #103575

Charcoal, Crimson and Steel 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 →

#755010

#106775 · #1d1075

#751035 · #357510

Split-complementary

Open in tool →

#751d10 · #677510

#751067 · #755010 · #10751d

Contrast

#103575 as textRatioAAAA largeAAAFix
Aaon white
11.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #3172e3 as the text (4.65:1)
  • AAA: use #6697ea as the text (7.18:1)
  • AA: or shift the background to #a1a1a1 (4.55:1)
  • AAA: or shift the background to #c9c9c9 (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 #103575 as the background.

Brands using this color

Fonts for this mood

#103575 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #103575
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 #103575 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/103575-9ca6c4-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