Color

#40dfe7

#40dfe7
hex#40dfe7
rgbrgb(64, 223, 231)
hslhsl(183, 78%, 58%)
oklchoklch(0.828 0.127 200.1)
Closest name: Hammam Blue (#65dcd6)Relative luminance 0.5963

Colors that go with #40dfe7

Charcoal, Light Coral and Crimson 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.

Real palettes that use #40dfe7

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e74940

#40e79c · #408ce7

#e740df · #dfe740

Split-complementary

Open in tool →

#e7408c · #e79c40

#9c40e7 · #e74940 · #8ce740

Contrast

#40dfe7 as textRatioAAAA largeAAAFix
Aaon white
1.62:1failfailfail
  • AA: use #118288 as the text (4.59:1)
  • AAA: use #0c5f64 as the text (7.4:1)
  • AA: or shift the background to #545454 (4.66:1)
  • AAA: or shift the background to #383838 (7.22:1)
Aaon black
12.93:1passpasspassPasses 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 #40dfe7 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

#40dfe7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40dfe7
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 #40dfe7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40dfe7-a2b9be-d4598e-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