Color

#3b0363

#3b0363
hex#3b0363
rgbrgb(59, 3, 99)
hslhsl(275, 94%, 20%)
oklchoklch(0.286 0.146 303.6)
Closest name: Cotinga Purple (#340059)Relative luminance 0.019

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b6303

#0b0363 · #63035b

#633b03 · #03633b

Split-complementary

Open in tool →

#5b6303 · #03630b

#630b03 · #2b6303 · #035b63

Contrast

#3b0363 as textRatioAAAA largeAAAFix
Aaon white
15.23:1passpasspassPasses AAA — no fix needed.
Aaon black
1.38:1failfailfail
  • AA: use #a734f9 as the text (4.5:1)
  • AAA: use #c374fb as the text (7.21:1)
  • AA: or shift the background to #8c8c8c (4.53:1)
  • AAA: or shift the background to #b0b0b0 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b0363 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

#3b0363 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3b0363
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 #3b0363 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b0363-b89cc4-c0cb62-2d1f2d-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