Color

#658ce6

#658ce6
hex#658ce6
rgbrgb(101, 140, 230)
hslhsl(222, 72%, 65%)
oklchoklch(0.652 0.142 265)
Closest name: cornflowerblue (#6495ed)Relative luminance 0.2724

Colors that go with #658ce6

Charcoal, Amber and Blue 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 →

#e6bf65

#65cce6 · #7f65e6

#e6658c · #8ce665

Split-complementary

Open in tool →

#e67f65 · #cce665

#e665cc · #e6bf65 · #65e67f

Contrast

#658ce6 as textRatioAAAA largeAAAFix
Aaon white
3.26:1failpassfail
  • AA: use #3e6ee0 as the text (4.65:1)
  • AAA: use #1f50c1 as the text (7.06:1)
  • AA: or shift the background to #262626 (4.65:1)
Aaon black
6.45:1passpassfail
  • AAA: use #7396e8 as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #658ce6 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

#658ce6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #658ce6
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 #658ce6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/658ce6-9ca3c4-df6e4e-211f2d-e9eff1?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