Color

#2f4fa7

#2f4fa7
hex#2f4fa7
rgbrgb(47, 79, 167)
hslhsl(224, 56%, 42%)
oklchoklch(0.455 0.147 265.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0899

Colors that go with #2f4fa7

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 →

#a7872f

#2f8ba7 · #4b2fa7

#a72f4f · #4fa72f

Split-complementary

Open in tool →

#a74b2f · #8ba72f

#a72f8b · #a7872f · #2fa74b

Contrast

#2f4fa7 as textRatioAAAA largeAAAFix
Aaon white
7.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2.8:1failfailfail
  • AA: use #5071ce as the text (4.59:1)
  • AAA: use #7c95da as the text (7.17:1)
  • AA: or shift the background to #c9c9c9 (4.53:1)
  • AAA: or shift the background to #f7f7f7 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f4fa7 as the background.

Brands using this color

Fonts for this mood

#2f4fa7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f4fa7
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 #2f4fa7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f4fa7-9ca2c4-df724e-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