Color

#4fa1e8

#4fa1e8
hex#4fa1e8
rgbrgb(79, 161, 232)
hslhsl(208, 77%, 61%)
oklchoklch(0.689 0.132 247.3)
Closest name: Cerulean (#55aaee)Relative luminance 0.3298

Colors that go with #4fa1e8

Charcoal, Medium Sea Green and Peru 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 →

#e8964f

#4fe8e3 · #4f54e8

#e84fa1 · #a1e84f

Split-complementary

Open in tool →

#e84f54 · #e8e34f

#e34fe8 · #e8964f · #54e84f

Contrast

#4fa1e8 as textRatioAAAA largeAAAFix
Aaon white
2.76:1failfailfail
  • AA: use #1a79cb as the text (4.52:1)
  • AAA: use #145b99 as the text (7.03:1)
  • AA: or shift the background to #333333 (4.57:1)
  • AAA: or shift the background to #0d0d0d (7.03:1)
Aaon black
7.6:1passpasspassPasses 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 #4fa1e8 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

#4fa1e8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4fa1e8
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 #4fa1e8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4fa1e8-9cadc4-df4e51-1f212d-e9f1f1?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