Color

#40bbe7

#40bbe7
hex#40bbe7
rgbrgb(64, 187, 231)
hslhsl(196, 78%, 58%)
oklchoklch(0.743 0.123 226.3)
Closest name: Blue Bikini (#00bbee)Relative luminance 0.424

Colors that go with #40bbe7

Charcoal, Amber 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 →

#e76d40

#40e7c0 · #4067e7

#e740bb · #bbe740

Split-complementary

Open in tool →

#e74067 · #e7c040

#c040e7 · #e76d40 · #67e740

Contrast

#40bbe7 as textRatioAAAA largeAAAFix
Aaon white
2.22:1failfailfail
  • AA: use #147da3 as the text (4.67:1)
  • AAA: use #0f5e7b as the text (7.22:1)
  • AA: or shift the background to #424242 (4.54:1)
  • AAA: or shift the background to #242424 (7.01:1)
Aaon black
9.48:1passpasspassPasses 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 #40bbe7 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

#40bbe7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40bbe7
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 #40bbe7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40bbe7-9cb5c4-df4e6e-1f232d-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