Color

#2343fb

#2343fb
hex#2343fb
rgbrgb(35, 67, 251)
hslhsl(231, 96%, 56%)
oklchoklch(0.507 0.269 266.5)
Closest name: C64 Blue (#003aff)Relative luminance 0.1134

Colors that go with #2343fb

Charcoal, Crimson 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 →

#fbda23

#23affb · #6e23fb

#fb2343 · #43fb23

Split-complementary

Open in tool →

#fb6e23 · #affb23

#fb23af · #fbda23 · #23fb6e

Contrast

#2343fb as textRatioAAAA largeAAAFix
Aaon white
6.43:1passpassfail
  • AAA: use #1437fa as the text (7.1:1)
Aaon black
3.27:1failpassfail
  • AA: use #4b66fb as the text (4.59:1)
  • AAA: use #7d90fc as the text (7.27:1)
  • AA: or shift the background to #d9d9d9 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2343fb as the background.

Brands using this color

Fonts for this mood

#2343fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2343fb
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 #2343fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2343fb-9c9ec4-df834e-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