Color

#2b3dde

#2b3dde
hex#2b3dde
rgbrgb(43, 61, 222)
hslhsl(234, 73%, 52%)
oklchoklch(0.471 0.239 268.7)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0913

Tints & shades

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

Harmonies

Complementary

Open in tool →

#decc2b

#2b96de · #732bde

#de2b3d · #3dde2b

Split-complementary

Open in tool →

#de732b · #96de2b

#de2b96 · #decc2b · #2bde73

Contrast

#2b3dde as textRatioAAAA largeAAAFix
Aaon white
7.43:1passpasspassPasses AAA — no fix needed.
Aaon black
2.83:1failfailfail
  • AA: use #5c6ae6 as the text (4.66:1)
  • AAA: use #838eec as the text (7.05:1)
  • AA: or shift the background to #cccccc (4.63:1)
  • AAA: or shift the background to #fafafa (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b3dde 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

#2b3dde reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b3dde
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 #2b3dde and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b3dde-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