Color

#615ec5

#615ec5
hex#615ec5
rgbrgb(97, 94, 197)
hslhsl(242, 47%, 57%)
oklchoklch(0.538 0.156 281.1)
Closest name: slateblue (#6a5acd)Relative luminance 0.1458

Colors that go with #615ec5

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 →

#c1c55e

#5e8ec5 · #955ec5

#c5615e · #5ec561

Split-complementary

Open in tool →

#c5955e · #8ec55e

#c55e8e · #c1c55e · #5ec595

Contrast

#615ec5 as textRatioAAAA largeAAAFix
Aaon white
5.36:1passpassfail
  • AAA: use #4b47bd as the text (7.15:1)
Aaon black
3.92:1failpassfail
  • AA: use #6c69c9 as the text (4.5:1)
  • AAA: use #918fd6 as the text (7.1:1)
  • AA: or shift the background to #ededed (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #615ec5 as the background.

Brands using this color

Fonts for this mood

#615ec5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #615ec5
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 #615ec5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/615ec5-a29cc4-df9e4e-261f2d-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