Color

#45c8d9

#45c8d9
hex#45c8d9
rgbrgb(69, 200, 217)
hslhsl(187, 66%, 56%)
oklchoklch(0.769 0.114 207.5)
Closest name: darkturquoise (#00ced1)Relative luminance 0.4758

Colors that go with #45c8d9

Charcoal, Dark Orange and Denim 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 →

#d95645

#45d9a0 · #457ed9

#d945c8 · #c8d945

Split-complementary

Open in tool →

#d9457e · #d9a045

#a045d9 · #d95645 · #7ed945

Contrast

#45c8d9 as textRatioAAAA largeAAAFix
Aaon white
2:1failfailfail
  • AA: use #1d7f8c as the text (4.7:1)
  • AAA: use #16606a as the text (7.2:1)
  • AA: or shift the background to #474747 (4.65:1)
  • AAA: or shift the background to #2b2b2b (7.09:1)
Aaon black
10.52:1passpasspassPasses 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 #45c8d9 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

#45c8d9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #45c8d9
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 #45c8d9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45c8d9-a2b8be-df4e83-1f262d-e9f1ee?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