Color

#6451c8

#6451c8
hex#6451c8
rgbrgb(100, 81, 200)
hslhsl(250, 52%, 55%)
oklchoklch(0.52 0.177 285.7)
Closest name: slateblue (#6a5acd)Relative luminance 0.1276

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b4c851

#5178c8 · #a051c8

#c86451 · #51c864

Split-complementary

Open in tool →

#c8a051 · #78c851

#c85178 · #b4c851 · #51c8a0

Contrast

#6451c8 as textRatioAAAA largeAAAFix
Aaon white
5.91:1passpassfail
  • AAA: use #5741c3 as the text (7.12:1)
Aaon black
3.55:1failpassfail
  • AA: use #7968cf as the text (4.69:1)
  • AAA: use #988bda as the text (7.04:1)
  • AA: or shift the background to #e3e3e3 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6451c8 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

#6451c8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6451c8
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 #6451c8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6451c8-a79cc4-dfb14e-281f2d-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