Color

#615bb3

#615bb3
hex#615bb3
rgbrgb(97, 91, 179)
hslhsl(244, 37%, 53%)
oklchoklch(0.52 0.135 283.7)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1328

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aeb35b

#5b81b3 · #8d5bb3

#b3615b · #5bb361

Split-complementary

Open in tool →

#b38d5b · #81b35b

#b35b81 · #aeb35b · #5bb38d

Contrast

#615bb3 as textRatioAAAA largeAAAFix
Aaon white
5.74:1passpassfail
  • AAA: use #534da8 as the text (7.01:1)
Aaon black
3.66:1failpassfail
  • AA: use #726cbc as the text (4.59:1)
  • AAA: use #938fcc as the text (7.04:1)
  • 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 #615bb3 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

#615bb3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #615bb3
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 #615bb3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/615bb3-a39cc4-dfa24e-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