Color

#103e56

#103e56
hex#103e56
rgbrgb(16, 62, 86)
hslhsl(201, 69%, 20%)
oklchoklch(0.346 0.064 236.1)
Closest name: Maniac Mansion (#004058)Relative luminance 0.0423

Colors that go with #103e56

Crimson, Royal Blue and Teal 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 →

#562810

#10564c · #101a56

#56103e · #3e5610

Split-complementary

Open in tool →

#56101a · #564c10

#4c1056 · #562810 · #1a5610

Contrast

#103e56 as textRatioAAAA largeAAAFix
Aaon white
11.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.85:1failfailfail
  • AA: use #207eb1 as the text (4.68:1)
  • AAA: use #309ed9 as the text (7.02:1)
  • AA: or shift the background to #a3a3a3 (4.51:1)
  • AAA: or shift the background to #cccccc (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 #103e56 as the background.

Brands using this color

Fonts for this mood

#103e56 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #103e56
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 #103e56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/103e56-9cb1c4-df4e62-1f222d-e9f1f0?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