Color

#2b23cd

#2b23cd
hex#2b23cd
rgbrgb(43, 35, 205)
hslhsl(243, 71%, 47%)
oklchoklch(0.42 0.242 271.1)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0612

Colors that go with #2b23cd

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 →

#c4cd23

#236fcd · #8023cd

#cd2b23 · #23cd2b

Split-complementary

Open in tool →

#cd8023 · #6fcd23

#cd236f · #c4cd23 · #23cd80

Contrast

#2b23cd as textRatioAAAA largeAAAFix
Aaon white
9.44:1passpasspassPasses AAA — no fix needed.
Aaon black
2.22:1failfailfail
  • AA: use #6d66e5 as the text (4.68:1)
  • AAA: use #928eec as the text (7.3:1)
  • AA: or shift the background to #b3b3b3 (4.5:1)
  • AAA: or shift the background to #dedede (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b23cd 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

#2b23cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b23cd
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 #2b23cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b23cd-a39cc4-dfa04e-261f2d-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