Color

#623caf

#623caf
hex#623caf
rgbrgb(98, 60, 175)
hslhsl(260, 49%, 46%)
oklchoklch(0.465 0.174 293.7)
Closest name: rebeccapurple (#663399)Relative luminance 0.0892

Colors that go with #623caf

Charcoal, Royal Blue and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#88af3c

#3c4faf · #9c3caf

#af623c · #3caf62

Split-complementary

Open in tool →

#af9c3c · #4faf3c

#af3c4f · #88af3c · #3caf9c

Contrast

#623caf as textRatioAAAA largeAAAFix
Aaon white
7.54:1passpasspassPasses AAA — no fix needed.
Aaon black
2.78:1failfailfail
  • AA: use #8563ca as the text (4.63:1)
  • AAA: use #a389d7 as the text (7.12:1)
  • AA: or shift the background to #c9c9c9 (4.55:1)
  • AAA: or shift the background to #f7f7f7 (7.04:1)

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

Brands using this color

Fonts for this mood

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

mcpConnect your agent — build around #623caf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #623caf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/623caf-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