Color

#3c4286

#3c4286
hex#3c4286
rgbrgb(60, 66, 134)
hslhsl(235, 38%, 38%)
oklchoklch(0.411 0.112 276.5)
Closest name: Evening Magic (#363e7d)Relative luminance 0.0658

Colors that go with #3c4286

Sea Green, Steel Blue and 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 →

#86803c

#3c6786 · #5b3c86

#863c42 · #42863c

Split-complementary

Open in tool →

#865b3c · #67863c

#863c67 · #86803c · #3c865b

Contrast

#3c4286 as textRatioAAAA largeAAAFix
Aaon white
9.07:1passpasspassPasses AAA — no fix needed.
Aaon black
2.32:1failfailfail
  • AA: use #686fbb as the text (4.58:1)
  • AAA: use #8e94cc as the text (7.26:1)
  • AA: or shift the background to #b8b8b8 (4.57:1)
  • AAA: or shift the background to #e3e3e3 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c4286 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

#3c4286 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c4286
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 #3c4286 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c4286-9e9cc4-df8d4e-241f2d-e9eef1?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