Color

#2b2bde

#2b2bde
hex#2b2bde
rgbrgb(43, 43, 222)
hslhsl(240, 73%, 52%)
oklchoklch(0.448 0.255 269.8)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0752

Colors that go with #2b2bde

Charcoal, Cornflower Blue and Crimson 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 →

#dede2b

#2b85de · #852bde

#de2b2b · #2bde2b

Split-complementary

Open in tool →

#de852b · #85de2b

#de2b85 · #dede2b · #2bde85

Contrast

#2b2bde as textRatioAAAA largeAAAFix
Aaon white
8.39:1passpasspassPasses AAA — no fix needed.
Aaon black
2.5:1failfailfail
  • AA: use #6565e7 as the text (4.57:1)
  • AAA: use #8c8ced as the text (7.09:1)
  • AA: or shift the background to #bfbfbf (4.56:1)
  • AAA: or shift the background to #ebebeb (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b2bde as the background.

Brands using this color

Fonts for this mood

#2b2bde reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b2bde
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 #2b2bde and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b2bde-a19cc4-df994e-251f2d-e9edf1?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