Color

#45c9bc

#45c9bc
hex#45c9bc
rgbrgb(69, 201, 188)
hslhsl(174, 55%, 53%)
oklchoklch(0.762 0.115 185.7)
Closest name: Cockatoo (#58c8b6)Relative luminance 0.4667

Colors that go with #45c9bc

Charcoal, Blue and Crimson 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 →

#c94552

#45c97a · #4594c9

#bc45c9 · #c9bc45

Split-complementary

Open in tool →

#c94594 · #c97a45

#7a45c9 · #c94552 · #94c945

Contrast

#45c9bc as textRatioAAAA largeAAAFix
Aaon white
2.03:1failfailfail
  • AA: use #268279 as the text (4.61:1)
  • AAA: use #1d635c as the text (7.02:1)
  • AA: or shift the background to #474747 (4.57:1)
  • AAA: or shift the background to #292929 (7.16:1)
Aaon black
10.33:1passpasspassPasses 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 #45c9bc as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #45c9bc
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 #45c9bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45c9bc-a2bebe-d459a1-1f292d-e9f1ed?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