Color

#4543b6

#4543b6
hex#4543b6
rgbrgb(69, 67, 182)
hslhsl(241, 46%, 49%)
oklchoklch(0.457 0.177 277.6)
Closest name: Blurple (#5539cc)Relative luminance 0.0866

Colors that go with #4543b6

Charcoal, Sea Green and Steel Blue 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 →

#b5b643

#437bb6 · #7f43b6

#b64543 · #43b645

Split-complementary

Open in tool →

#b67f43 · #7bb643

#b6437b · #b5b643 · #43b67f

Contrast

#4543b6 as textRatioAAAA largeAAAFix
Aaon white
7.69:1passpasspassPasses AAA — no fix needed.
Aaon black
2.73:1failfailfail
  • AA: use #6c6ac8 as the text (4.53:1)
  • AAA: use #908fd6 as the text (7.09:1)
  • AA: or shift the background to #c7c7c7 (4.55:1)
  • AAA: or shift the background to #f5f5f5 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4543b6 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#4543b6 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4543b6
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 #4543b6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4543b6-a19cc4-df9b4e-261f2d-e9edf1?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