Color

#6375bb

#6375bb
hex#6375bb
rgbrgb(99, 117, 187)
hslhsl(228, 39%, 56%)
oklchoklch(0.579 0.11 271.7)
Closest name: Flood (#6677bb)Relative luminance 0.1896

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bba963

#63a0bb · #7d63bb

#bb6375 · #75bb63

Split-complementary

Open in tool →

#bb7d63 · #a0bb63

#bb63a0 · #bba963 · #63bb7d

Contrast

#6375bb as textRatioAAAA largeAAAFix
Aaon white
4.38:1failpassfail
  • AA: use #5f71b9 as the text (4.62:1)
  • AAA: use #435498 as the text (7.09:1)
  • AA: or shift the background to #0a0a0a (4.52:1)
Aaon black
4.79:1passpassfail
  • AAA: use #8694ca as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6375bb 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

#6375bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6375bb
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 #6375bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6375bb-9c9fc4-df7c4e-231f2d-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