Color

#223fe2

#223fe2
hex#223fe2
rgbrgb(34, 63, 226)
hslhsl(231, 77%, 51%)
oklchoklch(0.475 0.244 266.8)
Closest name: C64 Blue (#003aff)Relative luminance 0.0939

Colors that go with #223fe2

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 →

#e2c522

#229fe2 · #6522e2

#e2223f · #3fe222

Split-complementary

Open in tool →

#e26522 · #9fe222

#e2229f · #e2c522 · #22e265

Contrast

#223fe2 as textRatioAAAA largeAAAFix
Aaon white
7.3:1passpasspassPasses AAA — no fix needed.
Aaon black
2.88:1failfailfail
  • AA: use #536ae9 as the text (4.61:1)
  • AAA: use #8191ef as the text (7.23:1)
  • AA: or shift the background to #cccccc (4.54:1)
  • AAA: or shift the background to #fcfcfc (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #223fe2 as the background.

Brands using this color

Fonts for this mood

#223fe2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #223fe2
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 #223fe2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/223fe2-9c9ec4-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