Color

#3056df

#3056df
hex#3056df
rgbrgb(48, 86, 223)
hslhsl(227, 73%, 53%)
oklchoklch(0.515 0.213 266.6)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1261

Colors that go with #3056df

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 →

#dfb930

#30addf · #6130df

#df3056 · #56df30

Split-complementary

Open in tool →

#df6130 · #addf30

#df30ad · #dfb930 · #30df61

Contrast

#3056df as textRatioAAAA largeAAAFix
Aaon white
5.96:1passpassfail
  • AAA: use #2148d4 as the text (7.14:1)
Aaon black
3.52:1failpassfail
  • AA: use #4a6be3 as the text (4.5:1)
  • AAA: use #7b93ea as the text (7.2:1)
  • AA: or shift the background to #e0e0e0 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3056df as the background.

Brands using this color

Fonts for this mood

#3056df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3056df
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 #3056df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3056df-9ca0c4-df7a4e-221f2d-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