Color

#3858c2

#3858c2
hex#3858c2
rgbrgb(56, 88, 194)
hslhsl(226, 55%, 49%)
oklchoklch(0.498 0.17 267.2)
Closest name: Denim (#1560bd)Relative luminance 0.1172

Colors that go with #3858c2

Charcoal, Sea Green 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 →

#c2a238

#389dc2 · #5d38c2

#c23858 · #58c238

Split-complementary

Open in tool →

#c25d38 · #9dc238

#c2389d · #c2a238 · #38c25d

Contrast

#3858c2 as textRatioAAAA largeAAAFix
Aaon white
6.28:1passpassfail
  • AAA: use #3451b2 as the text (7.08:1)
Aaon black
3.34:1failpassfail
  • AA: use #5571ce as the text (4.64:1)
  • AAA: use #8195da as the text (7.24:1)
  • AA: or shift the background to #dbdbdb (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3858c2 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

#3858c2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3858c2
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 #3858c2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3858c2-9ca1c4-df774e-221f2d-e9eff1?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