Color

#613dbd

#613dbd
hex#613dbd
rgbrgb(97, 61, 189)
hslhsl(257, 51%, 49%)
oklchoklch(0.477 0.189 290.3)
Closest name: Blurple (#5539cc)Relative luminance 0.0955

Tints & shades

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

Harmonies

Complementary

Open in tool →

#99bd3d

#3d59bd · #a13dbd

#bd613d · #3dbd61

Split-complementary

Open in tool →

#bda13d · #59bd3d

#bd3d59 · #99bd3d · #3dbda1

Contrast

#613dbd as textRatioAAAA largeAAAFix
Aaon white
7.22:1passpasspassPasses AAA — no fix needed.
Aaon black
2.91:1failfailfail
  • AA: use #8265cd as the text (4.69:1)
  • AAA: use #a28bda as the text (7.24:1)
  • AA: or shift the background to #cfcfcf (4.63:1)
  • AAA: or shift the background to #fcfcfc (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #613dbd as the background.

Brands using this color

Fonts for this mood

#613dbd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #613dbd
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 #613dbd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/613dbd-ac9cc4-dfc24e-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