Color

#2043df

#2043df
hex#2043df
rgbrgb(32, 67, 223)
hslhsl(229, 75%, 50%)
oklchoklch(0.477 0.237 266.2)
Closest name: C64 Blue (#003aff)Relative luminance 0.0965

Colors that go with #2043df

Charcoal, Sea Green and Amber 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 →

#dfbc20

#20a3df · #5c20df

#df2043 · #43df20

Split-complementary

Open in tool →

#df5c20 · #a3df20

#df20a3 · #dfbc20 · #20df5c

Contrast

#2043df as textRatioAAAA largeAAAFix
Aaon white
7.17:1passpasspassPasses AAA — no fix needed.
Aaon black
2.93:1failfailfail
  • AA: use #516ce6 as the text (4.64:1)
  • AAA: use #7e92ed as the text (7.22:1)
  • AA: or shift the background to #cfcfcf (4.6:1)
  • AAA: or shift the background to #ffffff (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2043df as the background.

Brands using this color

Fonts for this mood

#2043df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2043df
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 #2043df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2043df-9c9fc4-df7e4e-231f2d-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