Color

#40bdce

#40bdce
hex#40bdce
rgbrgb(64, 189, 206)
hslhsl(187, 59%, 53%)
oklchoklch(0.738 0.109 208.1)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.4194

Colors that go with #40bdce

Charcoal, Dark Orange 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 →

#ce5140

#40ce98 · #4077ce

#ce40bd · #bdce40

Split-complementary

Open in tool →

#ce4077 · #ce9840

#9840ce · #ce5140 · #77ce40

Contrast

#40bdce as textRatioAAAA largeAAAFix
Aaon white
2.24:1failfailfail
  • AA: use #25828e as the text (4.5:1)
  • AAA: use #1b6069 as the text (7.18:1)
  • AA: or shift the background to #404040 (4.64:1)
  • AAA: or shift the background to #212121 (7.2:1)
Aaon black
9.39:1passpasspassPasses 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 #40bdce 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

#40bdce reads as cool, modern. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/40bdce-a2b8be-df4e83-1f262d-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