Color

#6318aa

#6318aa
hex#6318aa
rgbrgb(99, 24, 170)
hslhsl(271, 75%, 38%)
oklchoklch(0.423 0.206 300.2)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0621

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5eaa18

#1b18aa · #aa18a7

#aa6318 · #18aa63

Split-complementary

Open in tool →

#a7aa18 · #18aa1b

#aa1b18 · #5eaa18 · #18a7aa

Contrast

#6318aa as textRatioAAAA largeAAAFix
Aaon white
9.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #9c4ce6 as the text (4.59:1)
  • AAA: use #b77eed as the text (7.22:1)
  • AA: or shift the background to #b5b5b5 (4.57:1)
  • AAA: or shift the background to #e0e0e0 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6318aa 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

#6318aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6318aa
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 #6318aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6318aa-b59cc4-c7cb62-2c1f2d-eae9f1?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