Color

#2d2b91

#2d2b91
hex#2d2b91
rgbrgb(45, 43, 145)
hslhsl(241, 54%, 37%)
oklchoklch(0.366 0.162 275.7)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0433

Colors that go with #2d2b91

Charcoal, Steel Blue and 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#90912b

#2b5d91 · #602b91

#912d2b · #2b912d

Split-complementary

Open in tool →

#91602b · #5d912b

#912b5d · #90912b · #2b9160

Contrast

#2d2b91 as textRatioAAAA largeAAAFix
Aaon white
11.25:1passpasspassPasses AAA — no fix needed.
Aaon black
1.87:1failfailfail
  • AA: use #6c6ad2 as the text (4.63:1)
  • AAA: use #8e8ddd as the text (7:1)
  • AA: or shift the background to #a6a6a6 (4.62:1)
  • AAA: or shift the background to #cccccc (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d2b91 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

#2d2b91 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d2b91
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 #2d2b91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d2b91-a19cc4-df9b4e-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