Color

#2842c8

#2842c8
hex#2842c8
rgbrgb(40, 66, 200)
hslhsl(230, 67%, 47%)
oklchoklch(0.456 0.208 267.8)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0852

Colors that go with #2842c8

Charcoal, Sea Green and Steel 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 →

#c8ad28

#2893c8 · #5d28c8

#c82842 · #42c828

Split-complementary

Open in tool →

#c85d28 · #93c828

#c82893 · #c8ad28 · #28c85d

Contrast

#2842c8 as textRatioAAAA largeAAAFix
Aaon white
7.77:1passpasspassPasses AAA — no fix needed.
Aaon black
2.7:1failfailfail
  • AA: use #556bdd as the text (4.53:1)
  • AAA: use #7f90e6 as the text (7.03:1)
  • AA: or shift the background to #c7c7c7 (4.59:1)
  • AAA: or shift the background to #f5f5f5 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2842c8 as the background.

Brands using this color

Fonts for this mood

#2842c8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2842c8
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 #2842c8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2842c8-9c9ec4-df814e-231f2d-e9eef1?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