Color

#3a3ecb

#3a3ecb
hex#3a3ecb
rgbrgb(58, 62, 203)
hslhsl(238, 58%, 51%)
oklchoklch(0.461 0.212 273.2)
Closest name: Blurple (#5539cc)Relative luminance 0.0866

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cbc63a

#3a87cb · #7d3acb

#cb3a3e · #3ecb3a

Split-complementary

Open in tool →

#cb7d3a · #87cb3a

#cb3a87 · #cbc63a · #3acb7d

Contrast

#3a3ecb as textRatioAAAA largeAAAFix
Aaon white
7.69:1passpasspassPasses AAA — no fix needed.
Aaon black
2.73:1failfailfail
  • AA: use #666ad6 as the text (4.6:1)
  • AAA: use #8e91e1 as the text (7.29:1)
  • AA: or shift the background to #c7c7c7 (4.55:1)
  • AAA: or shift the background to #f5f5f5 (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 #3a3ecb 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

#3a3ecb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a3ecb
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 #3a3ecb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a3ecb-9f9cc4-df944e-251f2d-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