Color

#2163fd

#2163fd
hex#2163fd
rgbrgb(33, 99, 253)
hslhsl(222, 98%, 56%)
oklchoklch(0.56 0.238 263.2)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1634

Colors that go with #2163fd

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 →

#fdbb21

#21d1fd · #4d21fd

#fd2163 · #63fd21

Split-complementary

Open in tool →

#fd4d21 · #d1fd21

#fd21d1 · #fdbb21 · #21fd4d

Contrast

#2163fd as textRatioAAAA largeAAAFix
Aaon white
4.92:1passpassfail
  • AAA: use #0246e3 as the text (7.03:1)
Aaon black
4.27:1failpassfail
  • AA: use #2b6afd as the text (4.58:1)
  • AAA: use #6895fd as the text (7.31:1)
  • AA: or shift the background to #f5f5f5 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2163fd as the background.

Brands using this color

Fonts for this mood

#2163fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2163fd
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 #2163fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2163fd-9ca3c4-df6e4e-211f2d-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