Color

#3618af

#3618af
hex#3618af
rgbrgb(54, 24, 175)
hslhsl(252, 76%, 39%)
oklchoklch(0.381 0.213 278.3)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0453

Colors that go with #3618af

Charcoal, Steel Blue and 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 →

#91af18

#1845af · #8218af

#af3618 · #18af36

Split-complementary

Open in tool →

#af8218 · #45af18

#af1845 · #91af18 · #18af82

Contrast

#3618af as textRatioAAAA largeAAAFix
Aaon white
11.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #795de9 as the text (4.56:1)
  • AAA: use #9b86ee as the text (7.04:1)
  • AA: or shift the background to #a6a6a6 (4.52:1)
  • AAA: or shift the background to #cfcfcf (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3618af 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

#3618af reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3618af
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 #3618af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3618af-a99cc4-dfb64e-281f2d-e9ecf1?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