Color

#45d3be

#45d3be
hex#45d3be
rgbrgb(69, 211, 190)
hslhsl(171, 62%, 55%)
oklchoklch(0.786 0.123 181.1)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.5157

Colors that go with #45d3be

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 →

#d3455a

#45d377 · #45a2d3

#be45d3 · #d3be45

Split-complementary

Open in tool →

#d345a2 · #d37745

#7745d3 · #d3455a · #a2d345

Contrast

#45d3be as textRatioAAAA largeAAAFix
Aaon white
1.86:1failfailfail
  • AA: use #1f8475 as the text (4.55:1)
  • AAA: use #176358 as the text (7.09:1)
  • AA: or shift the background to #4d4d4d (4.55:1)
  • AAA: or shift the background to #303030 (7.11:1)
Aaon black
11.31:1passpasspassPasses 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 #45d3be 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 #45d3be
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 #45d3be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45d3be-a2bebd-d459a7-1f292d-e9f1ec?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