Color

#623bbf

#623bbf
hex#623bbf
rgbrgb(98, 59, 191)
hslhsl(258, 53%, 49%)
oklchoklch(0.477 0.194 290.7)
Closest name: Blurple (#5539cc)Relative luminance 0.0949

Tints & shades

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

Harmonies

Complementary

Open in tool →

#97bf3b

#3b55bf · #a53bbf

#bf623b · #3bbf62

Split-complementary

Open in tool →

#bfa53b · #55bf3b

#bf3b55 · #97bf3b · #3bbfa5

Contrast

#623bbf as textRatioAAAA largeAAAFix
Aaon white
7.25:1passpasspassPasses AAA — no fix needed.
Aaon black
2.9:1failfailfail
  • AA: use #8363cf as the text (4.65:1)
  • AAA: use #a28adb as the text (7.19:1)
  • AA: or shift the background to #cccccc (4.51:1)
  • AAA: or shift the background to #fcfcfc (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #623bbf as the background.

Brands using this color

Fonts for this mood

#623bbf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #623bbf
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 #623bbf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/623bbf-ad9cc4-dfc44e-291f2d-e9ebf1?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