Color

#3a47bb

#3a47bb
hex#3a47bb
rgbrgb(58, 71, 187)
hslhsl(234, 53%, 48%)
oklchoklch(0.461 0.181 272.2)
Closest name: Denim (#2243b6)Relative luminance 0.0899

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bbae3a

#3a87bb · #6d3abb

#bb3a47 · #47bb3a

Split-complementary

Open in tool →

#bb6d3a · #87bb3a

#bb3a87 · #bbae3a · #3abb6d

Contrast

#3a47bb as textRatioAAAA largeAAAFix
Aaon white
7.5:1passpasspassPasses AAA — no fix needed.
Aaon black
2.8:1failfailfail
  • AA: use #636ecf as the text (4.66:1)
  • AAA: use #8a92db as the text (7.22:1)
  • AA: or shift the background to #c9c9c9 (4.53:1)
  • AAA: or shift the background to #f7f7f7 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a47bb 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

#3a47bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a47bb
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 #3a47bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a47bb-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