Color

#2b22aa

#2b22aa
hex#2b22aa
rgbrgb(43, 34, 170)
hslhsl(244, 67%, 40%)
oklchoklch(0.378 0.203 273.7)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0456

Colors that go with #2b22aa

Royal Blue, Olive Green and Midnight Blue 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 #2b22aa

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a1aa22

#225daa · #6f22aa

#aa2b22 · #22aa2b

Split-complementary

Open in tool →

#aa6f22 · #5daa22

#aa225d · #a1aa22 · #22aa6f

Contrast

#2b22aa as textRatioAAAA largeAAAFix
Aaon white
10.98:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #6e66e1 as the text (4.65:1)
  • AAA: use #928ce8 as the text (7.14:1)
  • AA: or shift the background to #a6a6a6 (4.51:1)
  • AAA: or shift the background to #cfcfcf (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b22aa 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

#2b22aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b22aa
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 #2b22aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b22aa-a39cc4-dfa24e-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