Color

#2d18f2

#2d18f2
hex#2d18f2
rgbrgb(45, 24, 242)
hslhsl(246, 89%, 52%)
oklchoklch(0.457 0.286 269.8)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0762

Colors that go with #2d18f2

Charcoal, Crimson and Cobalt Blue 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 →

#dcf218

#186ff2 · #9a18f2

#f22d18 · #18f22d

Split-complementary

Open in tool →

#f29a18 · #6ff218

#f2186f · #dcf218 · #18f29a

Contrast

#2d18f2 as textRatioAAAA largeAAAFix
Aaon white
8.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.52:1failfailfail
  • AA: use #6f60f6 as the text (4.68:1)
  • AAA: use #9287f8 as the text (7.04:1)
  • AA: or shift the background to #bfbfbf (4.52:1)
  • AAA: or shift the background to #ededed (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 #2d18f2 as the background.

Brands using this color

Fonts for this mood

#2d18f2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d18f2
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 #2d18f2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d18f2-a59cc4-dfa74e-271f2d-e9ecf1?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