Color

#2a3bcf

#2a3bcf
hex#2a3bcf
rgbrgb(42, 59, 207)
hslhsl(234, 66%, 49%)
oklchoklch(0.452 0.224 269)
Closest name: Denim (#2243b6)Relative luminance 0.0813

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cfbf2a

#2a8dcf · #6c2acf

#cf2a3b · #3bcf2a

Split-complementary

Open in tool →

#cf6c2a · #8dcf2a

#cf2a8d · #cfbf2a · #2acf6c

Contrast

#2a3bcf as textRatioAAAA largeAAAFix
Aaon white
8:1passpasspassPasses AAA — no fix needed.
Aaon black
2.63:1failfailfail
  • AA: use #5e6bde as the text (4.63:1)
  • AAA: use #8892e7 as the text (7.31:1)
  • AA: or shift the background to #c4c4c4 (4.59:1)
  • AAA: or shift the background to #f0f0f0 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a3bcf 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

#2a3bcf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a3bcf
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 #2a3bcf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a3bcf-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