Color

#2812f3

#2812f3
hex#2812f3
rgbrgb(40, 18, 243)
hslhsl(246, 90%, 51%)
oklchoklch(0.452 0.291 268.8)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0735

Colors that go with #2812f3

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 →

#dcf312

#126cf3 · #9912f3

#f32812 · #12f328

Split-complementary

Open in tool →

#f39912 · #6cf312

#f3126c · #dcf312 · #12f399

Contrast

#2812f3 as textRatioAAAA largeAAAFix
Aaon white
8.5:1passpasspassPasses AAA — no fix needed.
Aaon black
2.47:1failfailfail
  • AA: use #6e5ff7 as the text (4.64:1)
  • AAA: use #968bf9 as the text (7.36:1)
  • AA: or shift the background to #bdbdbd (4.52:1)
  • AAA: or shift the background to #ebebeb (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2812f3 as the background.

Brands using this color

Fonts for this mood

#2812f3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2812f3
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 #2812f3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2812f3-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