Color

#4f54d8

#4f54d8
hex#4f54d8
rgbrgb(79, 84, 216)
hslhsl(238, 64%, 58%)
oklchoklch(0.522 0.198 275.5)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1296

Colors that go with #4f54d8

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 →

#d8d44f

#4f98d8 · #8f4fd8

#d84f54 · #54d84f

Split-complementary

Open in tool →

#d88f4f · #98d84f

#d84f98 · #d8d44f · #4fd88f

Contrast

#4f54d8 as textRatioAAAA largeAAAFix
Aaon white
5.85:1passpassfail
Aaon black
3.59:1failpassfail
  • AA: use #6468dd as the text (4.57:1)
  • AAA: use #8a8de5 as the text (7.02:1)
  • AA: or shift the background to #e3e3e3 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f54d8 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

#4f54d8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f54d8
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 #4f54d8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f54d8-9f9cc4-df944e-251f2d-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