Color

#2f53ac

#2f53ac
hex#2f53ac
rgbrgb(47, 83, 172)
hslhsl(223, 57%, 43%)
oklchoklch(0.467 0.149 264.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0977

Colors that go with #2f53ac

Charcoal, Sea Green and Steel 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 →

#ac892f

#2f91ac · #4a2fac

#ac2f53 · #53ac2f

Split-complementary

Open in tool →

#ac4a2f · #91ac2f

#ac2f91 · #ac892f · #2fac4a

Contrast

#2f53ac as textRatioAAAA largeAAAFix
Aaon white
7.11:1passpasspassPasses AAA — no fix needed.
Aaon black
2.95:1failfailfail
  • AA: use #4b70ce as the text (4.51:1)
  • AAA: use #7b96db as the text (7.23:1)
  • AA: or shift the background to #cfcfcf (4.56:1)
  • AAA: or shift the background to #ffffff (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 #2f53ac as the background.

Brands using this color

Fonts for this mood

#2f53ac reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f53ac
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 #2f53ac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f53ac-9ca3c4-df704e-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