Color

#2b65e3

#2b65e3
hex#2b65e3
rgbrgb(43, 101, 227)
hslhsl(221, 77%, 53%)
oklchoklch(0.545 0.201 262.9)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1537

Colors that go with #2b65e3

Charcoal, Crimson 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 →

#e3a92b

#2bc2e3 · #4d2be3

#e32b65 · #65e32b

Split-complementary

Open in tool →

#e34d2b · #c2e32b

#e32bc2 · #e3a92b · #2be34d

Contrast

#2b65e3 as textRatioAAAA largeAAAFix
Aaon white
5.16:1passpassfail
  • AAA: use #194fc2 as the text (7.15:1)
Aaon black
4.07:1failpassfail
  • AA: use #386fe5 as the text (4.57:1)
  • AAA: use #6f96ec as the text (7.25:1)
  • AA: or shift the background to #f0f0f0 (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 #2b65e3 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2b65e3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b65e3
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 #2b65e3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b65e3-9ca4c4-df6b4e-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