Color

#6251cd

#6251cd
hex#6251cd
rgbrgb(98, 81, 205)
hslhsl(248, 55%, 56%)
oklchoklch(0.522 0.184 284.3)
Closest name: slateblue (#6a5acd)Relative luminance 0.1289

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bccd51

#517ecd · #9f51cd

#cd6251 · #51cd62

Split-complementary

Open in tool →

#cd9f51 · #7ecd51

#cd517e · #bccd51 · #51cd9f

Contrast

#6251cd as textRatioAAAA largeAAAFix
Aaon white
5.87:1passpassfail
  • AAA: use #5341c8 as the text (7.1:1)
Aaon black
3.58:1failpassfail
  • AA: use #7365d2 as the text (4.52:1)
  • AAA: use #978cde as the text (7.12:1)
  • AA: or shift the background to #e3e3e3 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6251cd 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

#6251cd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6251cd
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 #6251cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6251cd-a69cc4-dfac4e-271f2d-e9ecf1?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