Color

#6458bb

#6458bb
hex#6458bb
rgbrgb(100, 88, 187)
hslhsl(247, 42%, 54%)
oklchoklch(0.523 0.15 285.5)
Closest name: slateblue (#6a5acd)Relative luminance 0.1328

Colors that go with #6458bb

Charcoal, Sea Green and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#afbb58

#587ebb · #9558bb

#bb6458 · #58bb64

Split-complementary

Open in tool →

#bb9558 · #7ebb58

#bb587e · #afbb58 · #58bb95

Contrast

#6458bb as textRatioAAAA largeAAAFix
Aaon white
5.75:1passpassfail
  • AAA: use #5548b1 as the text (7.12:1)
Aaon black
3.66:1failpassfail
  • AA: use #756bc2 as the text (4.64:1)
  • AAA: use #968fd1 as the text (7.15:1)
  • AA: or shift the background to #e6e6e6 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6458bb 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

#6458bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6458bb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #6458bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6458bb-a59cc4-dfaa4e-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