Color

#2c41ba

#2c41ba
hex#2c41ba
rgbrgb(44, 65, 186)
hslhsl(231, 62%, 45%)
oklchoklch(0.442 0.19 269.1)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0786

Colors that go with #2c41ba

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 →

#baa52c

#2c88ba · #5d2cba

#ba2c41 · #41ba2c

Split-complementary

Open in tool →

#ba5d2c · #88ba2c

#ba2c88 · #baa52c · #2cba5d

Contrast

#2c41ba as textRatioAAAA largeAAAFix
Aaon white
8.16:1passpasspassPasses AAA — no fix needed.
Aaon black
2.57:1failfailfail
  • AA: use #5a6dd8 as the text (4.61:1)
  • AAA: use #8391e2 as the text (7.11:1)
  • AA: or shift the background to #c2c2c2 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2c41ba 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

#2c41ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2c41ba
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 #2c41ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2c41ba-9c9ec4-df834e-231f2d-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