Color

#42868f

#42868f
hex#42868f
rgbrgb(66, 134, 143)
hslhsl(187, 37%, 41%)
oklchoklch(0.579 0.07 206.8)
Closest name: darkcyan (#008b8b)Relative luminance 0.2019

Colors that go with #42868f

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 →

#8f4b42

#428f72 · #42608f

#8f4286 · #868f42

Split-complementary

Open in tool →

#8f4260 · #8f7242

#72428f · #8f4b42 · #608f42

Contrast

#42868f as textRatioAAAA largeAAAFix
Aaon white
4.17:1failpassfail
  • AA: use #3f8088 as the text (4.51:1)
  • AAA: use #2f5f65 as the text (7.13:1)
  • AA: or shift the background to #0f0f0f (4.6:1)
Aaon black
5.04:1passpassfail
  • AAA: use #50a4af as the text (7.27:1)

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

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

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

tool url/palettes/new/42868f-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