Color

#4bb3d2

#4bb3d2
hex#4bb3d2
rgbrgb(75, 179, 210)
hslhsl(194, 60%, 56%)
oklchoklch(0.718 0.105 220.8)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.3839

Colors that go with #4bb3d2

Charcoal, Amber and Dark Orange 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.

Real palettes that use #4bb3d2

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#d26b4b

#4bd2ae · #4b6fd2

#d24bb3 · #b3d24b

Split-complementary

Open in tool →

#d24b6f · #d2ae4b

#ae4bd2 · #d26b4b · #6fd24b

Contrast

#4bb3d2 as textRatioAAAA largeAAAFix
Aaon white
2.42:1failfailfail
  • AA: use #27809b as the text (4.52:1)
  • AAA: use #1d5e72 as the text (7.25:1)
  • AA: or shift the background to #3b3b3b (4.63:1)
  • AAA: or shift the background to #1c1c1c (7.04:1)
Aaon black
8.68:1passpasspassPasses 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 #4bb3d2 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

#4bb3d2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4bb3d2
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 #4bb3d2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bb3d2-9cb6c4-df4e72-1f242d-e9f1ef?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