Color

#379bcd

#379bcd
hex#379bcd
rgbrgb(55, 155, 205)
hslhsl(200, 60%, 51%)
oklchoklch(0.654 0.117 234.7)
Closest name: Blue Burst (#309cd0)Relative luminance 0.2866

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cd6937

#37cdb4 · #3750cd

#cd379b · #9bcd37

Split-complementary

Open in tool →

#cd3750 · #cdb437

#b437cd · #cd6937 · #50cd37

Contrast

#379bcd as textRatioAAAA largeAAAFix
Aaon white
3.12:1failpassfail
  • AA: use #2a7da7 as the text (4.58:1)
  • AAA: use #205f7e as the text (7:1)
  • AA: or shift the background to #2b2b2b (4.54:1)
Aaon black
6.73:1passpassfail
  • AAA: use #3f9fcf as the text (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 #379bcd 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

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

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

tool url/palettes/new/379bcd-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