Color

#3d33cc

#3d33cc
hex#3d33cc
rgbrgb(61, 51, 204)
hslhsl(244, 60%, 50%)
oklchoklch(0.448 0.223 275.4)
Closest name: Blurple (#5539cc)Relative luminance 0.0772

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c2cc33

#3375cc · #8a33cc

#cc3d33 · #33cc3d

Split-complementary

Open in tool →

#cc8a33 · #75cc33

#cc3375 · #c2cc33 · #33cc8a

Contrast

#3d33cc as textRatioAAAA largeAAAFix
Aaon white
8.26:1passpasspassPasses AAA — no fix needed.
Aaon black
2.54:1failfailfail
  • AA: use #7068d9 as the text (4.67:1)
  • AAA: use #928de2 as the text (7.13:1)
  • AA: or shift the background to #c2c2c2 (4.63:1)
  • AAA: or shift the background to #ededed (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d33cc 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

#3d33cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d33cc
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 #3d33cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d33cc-a39cc4-dfa24e-261f2d-e9edf1?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