Color

#4f338e

#4f338e
hex#4f338e
rgbrgb(79, 51, 142)
hslhsl(258, 47%, 38%)
oklchoklch(0.406 0.144 293.1)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0598

Colors that go with #4f338e

Charcoal, Royal Blue and 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 →

#738e33

#33468e · #7c338e

#8e4f33 · #338e4f

Split-complementary

Open in tool →

#8e7c33 · #468e33

#8e3346 · #738e33 · #338e7c

Contrast

#4f338e as textRatioAAAA largeAAAFix
Aaon white
9.56:1passpasspassPasses AAA — no fix needed.
Aaon black
2.2:1failfailfail
  • AA: use #8365c8 as the text (4.66:1)
  • AAA: use #a18bd5 as the text (7.17:1)
  • AA: or shift the background to #b3b3b3 (4.56:1)
  • AAA: or shift the background to #dedede (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f338e 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

#4f338e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f338e
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 #4f338e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f338e-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