Color

#379ecd

#379ecd
hex#379ecd
rgbrgb(55, 158, 205)
hslhsl(199, 60%, 51%)
oklchoklch(0.661 0.116 232.3)
Closest name: Blue Burst (#309cd0)Relative luminance 0.2967

Colors that go with #379ecd

Charcoal, Amber 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.

Real palettes that use #379ecd

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cd6737

#37cdb2 · #3753cd

#cd379e · #9ecd37

Split-complementary

Open in tool →

#cd3753 · #cdb237

#b237cd · #cd6737 · #53cd37

Contrast

#379ecd as textRatioAAAA largeAAAFix
Aaon white
3.03:1failpassfail
  • AA: use #297ca3 as the text (4.66:1)
  • AAA: use #1f5d7a as the text (7.23:1)
  • AA: or shift the background to #2b2b2b (4.68:1)
Aaon black
6.93:1passpassfail
  • AAA: use #3ba0ce as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #379ecd 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

#379ecd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #379ecd
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 #379ecd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/379ecd-9cb3c4-df4e66-1f232d-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