Color

#3d5cd6

#3d5cd6
hex#3d5cd6
rgbrgb(61, 92, 214)
hslhsl(228, 65%, 54%)
oklchoklch(0.524 0.19 268.2)
Closest name: God of Rain (#4466cc)Relative luminance 0.135

Colors that go with #3d5cd6

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 →

#d6b73d

#3da8d6 · #6b3dd6

#d63d5c · #5cd63d

Split-complementary

Open in tool →

#d66b3d · #a8d63d

#d63da8 · #d6b73d · #3dd66b

Contrast

#3d5cd6 as textRatioAAAA largeAAAFix
Aaon white
5.68:1passpassfail
  • AAA: use #2b4bca as the text (7.09:1)
Aaon black
3.7:1failpassfail
  • AA: use #526eda as the text (4.6:1)
  • AAA: use #7d91e3 as the text (7.03:1)
  • AA: or shift the background to #e6e6e6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d5cd6 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

#3d5cd6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d5cd6
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 #3d5cd6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d5cd6-9c9fc4-df7c4e-231f2d-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