Color

#2f3cf4

#2f3cf4
hex#2f3cf4
rgbrgb(47, 60, 244)
hslhsl(236, 90%, 57%)
oklchoklch(0.494 0.265 269)
Closest name: C64 Blue (#003aff)Relative luminance 0.1037

Colors that go with #2f3cf4

Charcoal, Crimson and Sea Green 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 →

#f4e72f

#2f9ff4 · #842ff4

#f42f3c · #3cf42f

Split-complementary

Open in tool →

#f4842f · #9ff42f

#f42f9f · #f4e72f · #2ff484

Contrast

#2f3cf4 as textRatioAAAA largeAAAFix
Aaon white
6.83:1passpassfail
  • AAA: use #2a37f4 as the text (7.12:1)
Aaon black
3.07:1failpassfail
  • AA: use #5a65f6 as the text (4.63:1)
  • AAA: use #868ef9 as the text (7.25:1)
  • AA: or shift the background to #d4d4d4 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f3cf4 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#2f3cf4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f3cf4
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 #2f3cf4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f3cf4-9e9cc4-df8f4e-241f2d-e9eef1?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