Color

#377ea0

#377ea0
hex#377ea0
rgbrgb(55, 126, 160)
hslhsl(199, 49%, 42%)
oklchoklch(0.563 0.088 232.1)
Closest name: Cry Me a River (#427898)Relative luminance 0.1827

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a05837

#37a08c · #374aa0

#a0377e · #7ea037

Split-complementary

Open in tool →

#a0374a · #a08c37

#8c37a0 · #a05837 · #4aa037

Contrast

#377ea0 as textRatioAAAA largeAAAFix
Aaon white
4.51:1passpassfail
  • AAA: use #285d76 as the text (7.2:1)
Aaon black
4.65:1passpassfail
  • AAA: use #509fc3 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #377ea0 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#377ea0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #377ea0
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 #377ea0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/377ea0-9cb3c4-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