Color

#734dcb

#734dcb
hex#734dcb
rgbrgb(115, 77, 203)
hslhsl(258, 55%, 55%)
oklchoklch(0.529 0.186 292.8)
Closest name: slateblue (#6a5acd)Relative luminance 0.1326

Colors that go with #734dcb

Charcoal, Sea Green and Amber 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 →

#a5cb4d

#4d66cb · #b24dcb

#cb734d · #4dcb73

Split-complementary

Open in tool →

#cbb24d · #66cb4d

#cb4d66 · #a5cb4d · #4dcbb2

Contrast

#734dcb as textRatioAAAA largeAAAFix
Aaon white
5.75:1passpassfail
  • AAA: use #6339c6 as the text (7.16:1)
Aaon black
3.65:1failpassfail
  • AA: use #8361d1 as the text (4.6:1)
  • AAA: use #a288dd as the text (7.1:1)
  • AA: or shift the background to #e6e6e6 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #734dcb as the background.

Brands using this color

Fonts for this mood

#734dcb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #734dcb
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 #734dcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/734dcb-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