Color

#243161

#243161
hex#243161
rgbrgb(36, 49, 97)
hslhsl(227, 46%, 26%)
oklchoklch(0.329 0.086 269.8)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0343

Colors that go with #243161

Dark Olive Green, Steel Blue and Blush Pink 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.

Real palettes that use #243161

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#615424

#245061 · #352461

#612431 · #316124

Split-complementary

Open in tool →

#613524 · #506124

#612450 · #615424 · #246135

Contrast

#243161 as textRatioAAAA largeAAAFix
Aaon white
12.45:1passpasspassPasses AAA — no fix needed.
Aaon black
1.69:1failfailfail
  • AA: use #5b72c2 as the text (4.63:1)
  • AAA: use #8495d2 as the text (7.21:1)
  • AA: or shift the background to #9c9c9c (4.53:1)
  • AAA: or shift the background to #c4c4c4 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #243161 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

#243161 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #243161
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 #243161 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/243161-9ca0c4-df7a4e-221f2d-e9eff1?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