Color

#65299e

#65299e
hex#65299e
rgbrgb(101, 41, 158)
hslhsl(271, 59%, 39%)
oklchoklch(0.43 0.179 302.8)
Closest name: rebeccapurple (#663399)Relative luminance 0.0682

Tints & shades

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

Harmonies

Complementary

Open in tool →

#619e29

#2b299e · #9e299c

#9e6529 · #299e65

Split-complementary

Open in tool →

#9c9e29 · #299e2b

#9e2b29 · #619e29 · #299c9e

Contrast

#65299e as textRatioAAAA largeAAAFix
Aaon white
8.88:1passpasspassPasses AAA — no fix needed.
Aaon black
2.36:1failfailfail
  • AA: use #9655d3 as the text (4.54:1)
  • AAA: use #b281df as the text (7.1:1)
  • AA: or shift the background to #bababa (4.58:1)
  • AAA: or shift the background to #e6e6e6 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #65299e as the background.

Brands using this color

Fonts for this mood

#65299e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #65299e
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 #65299e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/65299e-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