Color

#40dce7

#40dce7
hex#40dce7
rgbrgb(64, 220, 231)
hslhsl(184, 78%, 58%)
oklchoklch(0.82 0.126 202.1)
Closest name: Hammam Blue (#65dcd6)Relative luminance 0.5805

Colors that go with #40dce7

Charcoal, Deep Sky Blue and Light Coral 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 #40dce7

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e74c40

#40e79f · #4089e7

#e740dc · #dce740

Split-complementary

Open in tool →

#e74089 · #e79f40

#9f40e7 · #e74c40 · #89e740

Contrast

#40dce7 as textRatioAAAA largeAAAFix
Aaon white
1.67:1failfailfail
  • AA: use #118088 as the text (4.7:1)
  • AAA: use #0d6268 as the text (7.08:1)
  • AA: or shift the background to #545454 (4.55:1)
  • AAA: or shift the background to #383838 (7.04:1)
Aaon black
12.61:1passpasspassPasses 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 #40dce7 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

#40dce7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40dce7
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 #40dce7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40dce7-a2b9be-df4e8a-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