Color

#623cb4

#623cb4
hex#623cb4
rgbrgb(98, 60, 180)
hslhsl(259, 50%, 47%)
oklchoklch(0.469 0.18 292.7)
Closest name: Blurple (#5539cc)Relative luminance 0.0912

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8eb43c

#3c52b4 · #9e3cb4

#b4623c · #3cb462

Split-complementary

Open in tool →

#b49e3c · #52b43c

#b43c52 · #8eb43c · #3cb49e

Contrast

#623cb4 as textRatioAAAA largeAAAFix
Aaon white
7.43:1passpasspassPasses AAA — no fix needed.
Aaon black
2.82:1failfailfail
  • AA: use #8362cb as the text (4.57:1)
  • AAA: use #a188d7 as the text (7.02:1)
  • AA: or shift the background to #cccccc (4.63:1)
  • AAA: or shift the background to #fafafa (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #623cb4 as the background.

Brands using this color

Fonts for this mood

#623cb4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #623cb4
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 #623cb4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/623cb4-ad9cc4-dfc74e-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