Color

#2b27aa

#2b27aa
hex#2b27aa
rgbrgb(43, 39, 170)
hslhsl(242, 63%, 41%)
oklchoklch(0.385 0.198 273.2)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0487

Colors that go with #2b27aa

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 →

#a6aa27

#2764aa · #6d27aa

#aa2b27 · #27aa2b

Split-complementary

Open in tool →

#aa6d27 · #64aa27

#aa2764 · #a6aa27 · #27aa6d

Contrast

#2b27aa as textRatioAAAA largeAAAFix
Aaon white
10.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.97:1failfailfail
  • AA: use #6d69dd as the text (4.71:1)
  • AAA: use #928fe6 as the text (7.29:1)
  • AA: or shift the background to #ababab (4.63:1)
  • AAA: or shift the background to #d4d4d4 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b27aa 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

#2b27aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b27aa
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 #2b27aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b27aa-a29cc4-df9e4e-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