Color

#2f188b

#2f188b
hex#2f188b
rgbrgb(47, 24, 139)
hslhsl(252, 71%, 32%)
oklchoklch(0.334 0.173 280.7)
Closest name: Dramatic Blue (#240093)Relative luminance 0.0312

Colors that go with #2f188b

Steel Blue, Blue and Charcoal 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 →

#748c18

#183a8c · #69188c

#8c2f18 · #188c2f

Split-complementary

Open in tool →

#8c6918 · #3a8c18

#8c183a · #748c18 · #188c69

Contrast

#2f188b as textRatioAAAA largeAAAFix
Aaon white
12.93:1passpasspassPasses AAA — no fix needed.
Aaon black
1.62:1failfailfail
  • AA: use #785ee4 as the text (4.52:1)
  • AAA: use #9d89eb as the text (7.21:1)
  • AA: or shift the background to #999999 (4.54:1)
  • AAA: or shift the background to #bfbfbf (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f188b 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

#2f188b reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f188b
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 #2f188b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f188b-a99cc4-dfb64e-281f2d-e9ecf1?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