Color

#3115bc

#3115bc
hex#3115bc
rgbrgb(49, 21, 188)
hslhsl(250, 80%, 41%)
oklchoklch(0.391 0.23 274.9)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0482

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a0bc15

#154dbc · #8415bc

#bc3115 · #15bc31

Split-complementary

Open in tool →

#bc8415 · #4dbc15

#bc154d · #a0bc15 · #15bc84

Contrast

#3115bc as textRatioAAAA largeAAAFix
Aaon white
10.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.96:1failfailfail
  • AA: use #765eed as the text (4.59:1)
  • AAA: use #9988f2 as the text (7.16:1)
  • AA: or shift the background to #ababab (4.66:1)
  • AAA: or shift the background to #d1d1d1 (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 #3115bc 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

#3115bc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3115bc
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 #3115bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3115bc-a79cc4-dfb14e-281f2d-e9ecf1?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