Color

#4d5fa3

#4d5fa3
hex#4d5fa3
rgbrgb(77, 95, 163)
hslhsl(227, 36%, 47%)
oklchoklch(0.504 0.11 270.8)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1241

Colors that go with #4d5fa3

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 →

#a3904d

#4d8ba3 · #654da3

#a34d5f · #5fa34d

Split-complementary

Open in tool →

#a3654d · #8ba34d

#a34d8b · #a3904d · #4da365

Contrast

#4d5fa3 as textRatioAAAA largeAAAFix
Aaon white
6.03:1passpassfail
  • AAA: use #455592 as the text (7.08:1)
Aaon black
3.48:1failpassfail
  • AA: use #5f72b4 as the text (4.55:1)
  • AAA: use #8694c6 as the text (7.07:1)
  • AA: or shift the background to #e0e0e0 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4d5fa3 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

#4d5fa3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4d5fa3
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 #4d5fa3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4d5fa3-9ca0c4-df7a4e-221f2d-e9eff1?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