Color

#623bb0

#623bb0
hex#623bb0
rgbrgb(98, 59, 176)
hslhsl(260, 50%, 46%)
oklchoklch(0.465 0.176 293.7)
Closest name: rebeccapurple (#663399)Relative luminance 0.0886

Tints & shades

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

Harmonies

Complementary

Open in tool →

#89b03b

#3b4eb0 · #9c3bb0

#b0623b · #3bb062

Split-complementary

Open in tool →

#b09c3b · #4eb03b

#b03b4e · #89b03b · #3bb09c

Contrast

#623bb0 as textRatioAAAA largeAAAFix
Aaon white
7.58:1passpasspassPasses AAA — no fix needed.
Aaon black
2.77:1failfailfail
  • AA: use #8562cb as the text (4.61:1)
  • AAA: use #a388d7 as the text (7.06:1)
  • AA: or shift the background to #c9c9c9 (4.58:1)
  • AAA: or shift the background to #f7f7f7 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #623bb0 as the background.

Brands using this color

Fonts for this mood

#623bb0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #623bb0
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 #623bb0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/623bb0-ae9cc4-dfc94e-2a1f2d-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