Color

#345bda

#345bda
hex#345bda
rgbrgb(52, 91, 218)
hslhsl(226, 69%, 53%)
oklchoklch(0.522 0.199 266.4)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1327

Colors that go with #345bda

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 →

#dab334

#34aeda · #6134da

#da345b · #5bda34

Split-complementary

Open in tool →

#da6134 · #aeda34

#da34ae · #dab334 · #34da61

Contrast

#345bda as textRatioAAAA largeAAAFix
Aaon white
5.75:1passpassfail
  • AAA: use #254ccb as the text (7.06:1)
Aaon black
3.65:1failpassfail
  • AA: use #4e70df as the text (4.71:1)
  • AAA: use #7993e6 as the text (7.13:1)
  • AA: or shift the background to #e6e6e6 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #345bda as the background.

Brands using this color

Fonts for this mood

#345bda reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #345bda
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 #345bda and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/345bda-9ca1c4-df774e-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