Color

#2c39aa

#2c39aa
hex#2c39aa
rgbrgb(44, 57, 170)
hslhsl(234, 59%, 42%)
oklchoklch(0.413 0.179 270.9)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0636

Colors that go with #2c39aa

Charcoal, Sea Green and Steel 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 →

#aa9e2c

#2c78aa · #5e2caa

#aa2c39 · #39aa2c

Split-complementary

Open in tool →

#aa5e2c · #78aa2c

#aa2c78 · #aa9e2c · #2caa5e

Contrast

#2c39aa as textRatioAAAA largeAAAFix
Aaon white
9.24:1passpasspassPasses AAA — no fix needed.
Aaon black
2.27:1failfailfail
  • AA: use #616dd6 as the text (4.67:1)
  • AAA: use #8992e1 as the text (7.26:1)
  • AA: or shift the background to #b5b5b5 (4.51:1)
  • AAA: or shift the background to #e3e3e3 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2c39aa 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

#2c39aa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2c39aa
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 #2c39aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2c39aa-9d9cc4-df8a4e-241f2d-e9eef1?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