Color

#3600b3

#3600b3
hex#3600b3
rgbrgb(54, 0, 179)
hslhsl(258, 100%, 35%)
oklchoklch(0.372 0.228 278.6)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0404

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7db300

#0024b3 · #8f00b3

#b33600 · #00b336

Split-complementary

Open in tool →

#b38f00 · #24b300

#b30024 · #7db300 · #00b38f

Contrast

#3600b3 as textRatioAAAA largeAAAFix
Aaon white
11.62:1passpasspassPasses AAA — no fix needed.
Aaon black
1.81:1failfailfail
  • AA: use #8652ff as the text (4.66:1)
  • AAA: use #a680ff as the text (7.15:1)
  • AA: or shift the background to #a3a3a3 (4.61:1)
  • AAA: or shift the background to #c9c9c9 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3600b3 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

#3600b3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3600b3
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 #3600b3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3600b3-ad9cc4-dfc44e-291f2d-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