Color

#377fbe

#377fbe
hex#377fbe
rgbrgb(55, 127, 190)
hslhsl(208, 55%, 48%)
oklchoklch(0.58 0.121 248)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1971

Tints & shades

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

Harmonies

Complementary

Open in tool →

#be7637

#37beb9 · #373cbe

#be377f · #7fbe37

Split-complementary

Open in tool →

#be373c · #beb937

#b937be · #be7637 · #3cbe37

Contrast

#377fbe as textRatioAAAA largeAAAFix
Aaon white
4.25:1failpassfail
  • AA: use #357ab6 as the text (4.55:1)
  • AAA: use #275a86 as the text (7.26:1)
  • AA: or shift the background to #0f0f0f (4.51:1)
Aaon black
4.94:1passpassfail
  • AAA: use #619dd1 as the text (7.25:1)

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

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

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

tool url/palettes/new/377fbe-9cadc4-df4e51-1f212d-e9f1f1?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