Color

#2b33bf

#2b33bf
hex#2b33bf
rgbrgb(43, 51, 191)
hslhsl(237, 63%, 46%)
oklchoklch(0.424 0.212 270.7)
Closest name: Denim (#2243b6)Relative luminance 0.0664

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bfb82b

#2b7dbf · #6e2bbf

#bf2b33 · #33bf2b

Split-complementary

Open in tool →

#bf6e2b · #7dbf2b

#bf2b7d · #bfb82b · #2bbf6e

Contrast

#2b33bf as textRatioAAAA largeAAAFix
Aaon white
9.02:1passpasspassPasses AAA — no fix needed.
Aaon black
2.33:1failfailfail
  • AA: use #656bdc as the text (4.69:1)
  • AAA: use #8b8fe5 as the text (7.16:1)
  • AA: or shift the background to #b8b8b8 (4.55:1)
  • AAA: or shift the background to #e3e3e3 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b33bf 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

#2b33bf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b33bf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #2b33bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b33bf-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