Color

#57cbcb

#57cbcb
hex#57cbcb
rgbrgb(87, 203, 203)
hslhsl(180, 53%, 57%)
oklchoklch(0.776 0.104 195.2)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.4905

Colors that go with #57cbcb

Charcoal, Light Coral and Blue 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 →

#cb5757

#57cb91 · #5791cb

#cb57cb · #cbcb57

Split-complementary

Open in tool →

#cb5791 · #cb9157

#9157cb · #cb5757 · #91cb57

Contrast

#57cbcb as textRatioAAAA largeAAAFix
Aaon white
1.94:1failfailfail
  • AA: use #288181 as the text (4.62:1)
  • AAA: use #1e6262 as the text (7.05:1)
  • AA: or shift the background to #4a4a4a (4.56:1)
  • AAA: or shift the background to #2b2b2b (7.29:1)
Aaon black
10.81:1passpasspassPasses 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 #57cbcb 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

#57cbcb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #57cbcb
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 #57cbcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57cbcb-a2bbbe-d45994-1f272d-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