Color

#3c8fb9

#3c8fb9
hex#3c8fb9
rgbrgb(60, 143, 185)
hslhsl(200, 51%, 48%)
oklchoklch(0.617 0.102 233.9)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2411

Colors that go with #3c8fb9

Charcoal, Copper and Dodger 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 →

#b9663c

#3cb9a4 · #3c51b9

#b93c8f · #8fb93c

Split-complementary

Open in tool →

#b93c51 · #b9a43c

#a43cb9 · #b9663c · #51b93c

Contrast

#3c8fb9 as textRatioAAAA largeAAAFix
Aaon white
3.61:1failpassfail
  • AA: use #347da2 as the text (4.56:1)
  • AAA: use #275c77 as the text (7.28:1)
  • AA: or shift the background to #1f1f1f (4.57:1)
Aaon black
5.82:1passpassfail
  • AAA: use #4e9ec6 as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c8fb9 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

#3c8fb9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c8fb9
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 #3c8fb9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c8fb9-9cb2c4-df4e64-1f232d-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