Color

#3a0066

#3a0066
hex#3a0066
rgbrgb(58, 0, 102)
hslhsl(274, 100%, 20%)
oklchoklch(0.286 0.151 301.9)
Closest name: Cotinga Purple (#340059)Relative luminance 0.0186

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2c6600

#070066 · #66005f

#663a00 · #00663a

Split-complementary

Open in tool →

#5f6600 · #006607

#660700 · #2c6600 · #005f66

Contrast

#3a0066 as textRatioAAAA largeAAAFix
Aaon white
15.31:1passpasspassPasses AAA — no fix needed.
Aaon black
1.37:1failfailfail
  • AA: use #a733ff as the text (4.56:1)
  • AAA: use #c170ff as the text (7.03:1)
  • AA: or shift the background to #8c8c8c (4.55:1)
  • AAA: or shift the background to #b0b0b0 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a0066 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

#3a0066 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a0066
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 #3a0066 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a0066-b79cc4-c2cb62-2d1f2d-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