Color

#3186bf

#3186bf
hex#3186bf
rgbrgb(49, 134, 191)
hslhsl(204, 59%, 47%)
oklchoklch(0.595 0.118 242.2)
Closest name: steelblue (#4682b4)Relative luminance 0.2146

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#bf6a31

#31bfb0 · #313fbf

#bf3186 · #86bf31

Split-complementary

Open in tool →

#bf313f · #bfb031

#b031bf · #bf6a31 · #3fbf31

Contrast

#3186bf as textRatioAAAA largeAAAFix
Aaon white
3.97:1failpassfail
  • AA: use #2d7bae as the text (4.61:1)
  • AAA: use #215b82 as the text (7.28:1)
  • AA: or shift the background to #171717 (4.52:1)
Aaon black
5.29:1passpassfail
  • AAA: use #519ed2 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3186bf 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

#3186bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3186bf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3186bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3186bf-9cafc4-df4e5a-1f222d-e9f1f0?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