Color

#40aebf

#40aebf
hex#40aebf
rgbrgb(64, 174, 191)
hslhsl(188, 50%, 50%)
oklchoklch(0.696 0.101 209.5)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3512

Colors that go with #40aebf

Charcoal, Terracotta and Amber 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 →

#bf5140

#40bf91 · #406fbf

#bf40ae · #aebf40

Split-complementary

Open in tool →

#bf406e · #bf9140

#9140bf · #bf5140 · #6fbf40

Contrast

#40aebf as textRatioAAAA largeAAAFix
Aaon white
2.62:1failfailfail
  • AA: use #2f818e as the text (4.51:1)
  • AAA: use #225e67 as the text (7.33:1)
  • AA: or shift the background to #363636 (4.62:1)
  • AAA: or shift the background to #141414 (7.04:1)
Aaon black
8.02:1passpasspassPasses 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 #40aebf 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

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

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

tool url/palettes/new/40aebf-a2b7be-df4e81-1f252d-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