Color

#363cab

#363cab
hex#363cab
rgbrgb(54, 60, 171)
hslhsl(237, 52%, 44%)
oklchoklch(0.425 0.174 273.9)
Closest name: Bluebell (#333399)Relative luminance 0.0696

Colors that go with #363cab

Charcoal, Sea Green 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 →

#aba536

#3676ab · #6a36ab

#ab363c · #3cab36

Split-complementary

Open in tool →

#ab6a36 · #76ab36

#ab3676 · #aba536 · #36ab6a

Contrast

#363cab as textRatioAAAA largeAAAFix
Aaon white
8.78:1passpasspassPasses AAA — no fix needed.
Aaon black
2.39:1failfailfail
  • AA: use #686dcf as the text (4.68:1)
  • AAA: use #8b8fda as the text (7.04:1)
  • AA: or shift the background to #bababa (4.53:1)
  • AAA: or shift the background to #e6e6e6 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #363cab 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

#363cab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #363cab
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 #363cab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/363cab-9f9cc4-df924e-251f2d-e9edf1?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