Color

#340acd

#340acd
hex#340acd
rgbrgb(52, 10, 205)
hslhsl(253, 91%, 42%)
oklchoklch(0.408 0.252 274.5)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0535

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a2cd0a

#0a41cd · #950acd

#cd340a · #0acd34

Split-complementary

Open in tool →

#cd950a · #41cd0a

#cd0a41 · #a2cd0a · #0acd95

Contrast

#340acd as textRatioAAAA largeAAAFix
Aaon white
10.14:1passpasspassPasses AAA — no fix needed.
Aaon black
2.07:1failfailfail
  • AA: use #7c59f7 as the text (4.63:1)
  • AAA: use #9e85f9 as the text (7.18:1)
  • AA: or shift the background to #adadad (4.52:1)
  • AAA: or shift the background to #d9d9d9 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #340acd 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

#340acd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #340acd
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 #340acd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/340acd-a99cc4-dfb84e-281f2d-e9ebf1?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