Color

#6388bf

#6388bf
hex#6388bf
rgbrgb(99, 136, 191)
hslhsl(216, 42%, 57%)
oklchoklch(0.622 0.094 258.1)
Closest name: Galactic Gossamer (#7f8cb8)Relative luminance 0.2402

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf9b63

#63b6bf · #6d63bf

#bf6388 · #88bf63

Split-complementary

Open in tool →

#bf6d63 · #b6bf63

#bf63b6 · #bf9b63 · #63bf6d

Contrast

#6388bf as textRatioAAAA largeAAAFix
Aaon white
3.62:1failpassfail
  • AA: use #4a75b5 as the text (4.66:1)
  • AAA: use #38598a as the text (7.08:1)
  • AA: or shift the background to #1f1f1f (4.56:1)
Aaon black
5.8:1passpassfail
  • AAA: use #7999c8 as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6388bf 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

#6388bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6388bf
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 #6388bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6388bf-9ca7c4-df5f4e-201f2d-e9f0f1?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