Color

#2f4fd0

#2f4fd0
hex#2f4fd0
rgbrgb(47, 79, 208)
hslhsl(228, 63%, 50%)
oklchoklch(0.489 0.202 267.4)
Closest name: Denim (#1560bd)Relative luminance 0.1075

Colors that go with #2f4fd0

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.

Real palettes that use #2f4fd0

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#d0b02f

#2fa0d0 · #5f2fd0

#d02f4f · #4fd02f

Split-complementary

Open in tool →

#d05f2f · #a0d02f

#d02fa0 · #d0b02f · #2fd05f

Contrast

#2f4fd0 as textRatioAAAA largeAAAFix
Aaon white
6.67:1passpassfail
  • AAA: use #2d4cc8 as the text (7.05:1)
Aaon black
3.15:1failpassfail
  • AA: use #556fd8 as the text (4.65:1)
  • AAA: use #7e92e2 as the text (7.1:1)
  • AA: or shift the background to #d6d6d6 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f4fd0 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2f4fd0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f4fd0
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 #2f4fd0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f4fd0-9c9fc4-df7c4e-231f2d-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