Color

#103c50

#103c50
hex#103c50
rgbrgb(16, 60, 80)
hslhsl(199, 67%, 19%)
oklchoklch(0.337 0.058 232.2)
Closest name: Maniac Mansion (#004058)Relative luminance 0.0392

Colors that go with #103c50

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 →

#512510

#105145 · #101c51

#51103c · #3c5110

Split-complementary

Open in tool →

#51101c · #514510

#451051 · #512510 · #1c5110

Contrast

#103c50 as textRatioAAAA largeAAAFix
Aaon white
11.77:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #227faa as the text (4.68:1)
  • AAA: use #2a9fd5 as the text (7.02:1)
  • AA: or shift the background to #a1a1a1 (4.56:1)
  • AAA: or shift the background to #c9c9c9 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #103c50 as the background.

Brands using this color

Fonts for this mood

#103c50 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #103c50
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 #103c50 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/103c50-9cb3c4-df4e66-1f232d-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