Color

#2c33ba

#2c33ba
hex#2c33ba
rgbrgb(44, 51, 186)
hslhsl(237, 62%, 45%)
oklchoklch(0.419 0.206 271.2)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0645

Colors that go with #2c33ba

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 →

#bab32c

#2c7aba · #6c2cba

#ba2c33 · #33ba2c

Split-complementary

Open in tool →

#ba6c2c · #7aba2c

#ba2c7a · #bab32c · #2cba6c

Contrast

#2c33ba as textRatioAAAA largeAAAFix
Aaon white
9.17:1passpasspassPasses AAA — no fix needed.
Aaon black
2.29:1failfailfail
  • AA: use #6268da as the text (4.51:1)
  • AAA: use #8b90e4 as the text (7.21:1)
  • AA: or shift the background to #b8b8b8 (4.62:1)
  • AAA: or shift the background to #e3e3e3 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2c33ba 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

#2c33ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2c33ba
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 #2c33ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2c33ba-9f9cc4-df924e-251f2d-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