Color

#3136c9

#3136c9
hex#3136c9
rgbrgb(49, 54, 201)
hslhsl(238, 61%, 49%)
oklchoklch(0.442 0.22 271.6)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0751

Colors that go with #3136c9

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 →

#c9c431

#3182c9 · #7831c9

#c93136 · #36c931

Split-complementary

Open in tool →

#c97831 · #82c931

#c93182 · #c9c431 · #31c978

Contrast

#3136c9 as textRatioAAAA largeAAAFix
Aaon white
8.39:1passpasspassPasses AAA — no fix needed.
Aaon black
2.5:1failfailfail
  • AA: use #676bda as the text (4.69:1)
  • AAA: use #8c8fe3 as the text (7.15:1)
  • AA: or shift the background to #bfbfbf (4.56:1)
  • AAA: or shift the background to #ebebeb (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3136c9 as the background.

Brands using this color

Fonts for this mood

#3136c9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3136c9
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 #3136c9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3136c9-9f9cc4-df944e-251f2d-e9edf1?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