Color

#2d389a

#2d389a
hex#2d389a
rgbrgb(45, 56, 154)
hslhsl(234, 55%, 39%)
oklchoklch(0.397 0.158 272)
Closest name: Bluebell (#333399)Relative luminance 0.0572

Colors that go with #2d389a

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 →

#9a8f2d

#2d6e9a · #592d9a

#9a2d38 · #389a2d

Split-complementary

Open in tool →

#9a592d · #6e9a2d

#9a2d6e · #9a8f2d · #2d9a59

Contrast

#2d389a as textRatioAAAA largeAAAFix
Aaon white
9.8:1passpasspassPasses AAA — no fix needed.
Aaon black
2.14:1failfailfail
  • AA: use #616cd1 as the text (4.57:1)
  • AAA: use #8891dd as the text (7.14:1)
  • AA: or shift the background to #b0b0b0 (4.52:1)
  • AAA: or shift the background to #dbdbdb (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 #2d389a 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

#2d389a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d389a
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 #2d389a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d389a-9d9cc4-df8a4e-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