Color

#6379bf

#6379bf
hex#6379bf
rgbrgb(99, 121, 191)
hslhsl(226, 42%, 57%)
oklchoklch(0.59 0.111 269.6)
Closest name: Flood (#6677bb)Relative luminance 0.2009

Colors that go with #6379bf

Charcoal, Sea Green and Amber 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 →

#bfaa63

#63a7bf · #7c63bf

#bf6379 · #79bf63

Split-complementary

Open in tool →

#bf7c63 · #a7bf63

#bf63a7 · #bfaa63 · #63bf7c

Contrast

#6379bf as textRatioAAAA largeAAAFix
Aaon white
4.19:1failpassfail
  • AA: use #5c73bc as the text (4.53:1)
  • AAA: use #40559c as the text (7.01:1)
  • AA: or shift the background to #0f0f0f (4.58:1)
Aaon black
5.02:1passpassfail
  • AAA: use #8495cd as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6379bf 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

#6379bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6379bf
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 #6379bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6379bf-9ca1c4-df774e-221f2d-e9eff1?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