Color

#4f5dab

#4f5dab
hex#4f5dab
rgbrgb(79, 93, 171)
hslhsl(231, 37%, 49%)
oklchoklch(0.506 0.124 273.5)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1243

Colors that go with #4f5dab

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 →

#ab9d4f

#4f8bab · #6f4fab

#ab4f5d · #5dab4f

Split-complementary

Open in tool →

#ab6f4f · #8bab4f

#ab4f8b · #ab9d4f · #4fab6f

Contrast

#4f5dab as textRatioAAAA largeAAAFix
Aaon white
6.02:1passpassfail
  • AAA: use #47539a as the text (7.07:1)
Aaon black
3.49:1failpassfail
  • AA: use #6572b8 as the text (4.65:1)
  • AAA: use #8c95ca as the text (7.27:1)
  • AA: or shift the background to #e0e0e0 (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 #4f5dab 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

#4f5dab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4f5dab
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 #4f5dab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f5dab-9c9ec4-df834e-231f2d-e9eef1?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