Color

#42868a

#42868a
hex#42868a
rgbrgb(66, 134, 138)
hslhsl(183, 35%, 40%)
oklchoklch(0.578 0.069 200.5)
Closest name: darkcyan (#008b8b)Relative luminance 0.2004

Colors that go with #42868a

Charcoal, Copper 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 →

#8a4642

#428a6a · #42628a

#8a4286 · #868a42

Split-complementary

Open in tool →

#8a4262 · #8a6a42

#6a428a · #8a4642 · #628a42

Contrast

#42868a as textRatioAAAA largeAAAFix
Aaon white
4.19:1failpassfail
  • AA: use #3f7f83 as the text (4.59:1)
  • AAA: use #2e5e60 as the text (7.28:1)
  • AA: or shift the background to #0f0f0f (4.57:1)
Aaon black
5.01:1passpassfail
  • AAA: use #51a4a9 as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42868a 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

#42868a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42868a
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 #42868a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42868a-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