Color

#4fa9de

#4fa9de
hex#4fa9de
rgbrgb(79, 169, 222)
hslhsl(202, 68%, 59%)
oklchoklch(0.702 0.116 237.5)
Closest name: Cousteau (#55a9d6)Relative luminance 0.3531

Colors that go with #4fa9de

Charcoal, Peru 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 →

#de834f

#4fdecb · #4f62de

#de4fa9 · #a9de4f

Split-complementary

Open in tool →

#de4f62 · #decb4f

#cb4fde · #de834f · #62de4f

Contrast

#4fa9de as textRatioAAAA largeAAAFix
Aaon white
2.6:1failfailfail
  • AA: use #217cb0 as the text (4.59:1)
  • AAA: use #195d85 as the text (7.13:1)
  • AA: or shift the background to #383838 (4.5:1)
  • AAA: or shift the background to #141414 (7.07:1)
Aaon black
8.06:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4fa9de as the background.

Brands using this color

Fonts for this mood

#4fa9de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4fa9de
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 #4fa9de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4fa9de-9cb1c4-df4e5f-1f222d-e9f1f0?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