Color

#6157cb

#6157cb
hex#6157cb
rgbrgb(97, 87, 203)
hslhsl(245, 53%, 57%)
oklchoklch(0.53 0.174 282.6)
Closest name: slateblue (#6a5acd)Relative luminance 0.1367

Colors that go with #6157cb

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 →

#c2cb57

#5788cb · #9b57cb

#cb6157 · #57cb61

Split-complementary

Open in tool →

#cb9b57 · #88cb57

#cb5788 · #c2cb57 · #57cb9b

Contrast

#6157cb as textRatioAAAA largeAAAFix
Aaon white
5.62:1passpassfail
  • AAA: use #4f44c5 as the text (7.08:1)
Aaon black
3.73:1failpassfail
  • AA: use #7067d0 as the text (4.54:1)
  • AAA: use #948edc as the text (7.16:1)
  • AA: or shift the background to #e6e6e6 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6157cb 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

#6157cb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6157cb
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 #6157cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6157cb-a49cc4-dfa54e-261f2d-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