Color

#31c7ed

#31c7ed
hex#31c7ed
rgbrgb(49, 199, 237)
hslhsl(192, 84%, 56%)
oklchoklch(0.771 0.13 219.8)
Closest name: Blue Bikini (#00bbee)Relative luminance 0.4761

Colors that go with #31c7ed

Charcoal, Crimson 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 →

#ed5631

#31edb4 · #3169ed

#ed31c7 · #c7ed31

Split-complementary

Open in tool →

#ed3169 · #edb431

#b431ed · #ed5631 · #69ed31

Contrast

#31c7ed as textRatioAAAA largeAAAFix
Aaon white
2:1failfailfail
  • AA: use #0d7f9b as the text (4.64:1)
  • AAA: use #0a6075 as the text (7.14:1)
  • AA: or shift the background to #474747 (4.66:1)
  • 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 #31c7ed 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

#31c7ed reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31c7ed
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 #31c7ed and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31c7ed-a2b5be-df4e77-1f242d-e9f1ef?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