Color

#408c91

#408c91
hex#408c91
rgbrgb(64, 140, 145)
hslhsl(184, 39%, 41%)
oklchoklch(0.594 0.075 201.2)
Closest name: Highlands (#449084)Relative luminance 0.2189

Colors that go with #408c91

Charcoal, Copper and Cobalt Blue 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 →

#914540

#40916e · #406391

#91408c · #8c9140

Split-complementary

Open in tool →

#914063 · #916e40

#6e4091 · #914540 · #639140

Contrast

#408c91 as textRatioAAAA largeAAAFix
Aaon white
3.9:1failpassfail
  • AA: use #3a7e83 as the text (4.67:1)
  • AAA: use #2c6063 as the text (7.09:1)
  • AA: or shift the background to #171717 (4.59:1)
Aaon black
5.38:1passpassfail
  • AAA: use #4ba4aa as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #408c91 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#408c91 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #408c91
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 #408c91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/408c91-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