Color

#31ccdd

#31ccdd
hex#31ccdd
rgbrgb(49, 204, 221)
hslhsl(186, 72%, 53%)
oklchoklch(0.776 0.123 206.3)
Closest name: darkturquoise (#00ced1)Relative luminance 0.4906

Colors that go with #31ccdd

Charcoal, Crimson 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dd4231

#31dd98 · #3176dd

#dd31cc · #ccdd31

Split-complementary

Open in tool →

#dd3176 · #dd9831

#9831dd · #dd4231 · #76dd31

Contrast

#31ccdd as textRatioAAAA largeAAAFix
Aaon white
1.94:1failfailfail
  • AA: use #17818c as the text (4.61:1)
  • AAA: use #116069 as the text (7.24:1)
  • 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 #31ccdd 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

#31ccdd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31ccdd
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 #31ccdd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31ccdd-a2b8be-df4e86-1f262d-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