Color

#4f01d5

#4f01d5
hex#4f01d5
rgbrgb(79, 1, 213)
hslhsl(262, 99%, 42%)
oklchoklch(0.436 0.257 283.5)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0649

Colors that go with #4f01d5

Charcoal, Royal Blue and Cobalt 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 →

#87d501

#011dd5 · #b901d5

#d54f01 · #01d54f

Split-complementary

Open in tool →

#d5b901 · #1dd501

#d5011d · #87d501 · #01d5b9

Contrast

#4f01d5 as textRatioAAAA largeAAAFix
Aaon white
9.14:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #8e4dfe as the text (4.64:1)
  • AAA: use #ae80fe as the text (7.32:1)
  • AA: or shift the background to #b8b8b8 (4.61:1)
  • AAA: or shift the background to #e3e3e3 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f01d5 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

#4f01d5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f01d5
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 #4f01d5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f01d5-af9cc4-dfce4e-2a1f2d-e9eaf1?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