Color

#5d78bb

#5d78bb
hex#5d78bb
rgbrgb(93, 120, 187)
hslhsl(223, 41%, 55%)
oklchoklch(0.581 0.108 266.4)
Closest name: Flood (#6677bb)Relative luminance 0.1935

Colors that go with #5d78bb

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 →

#bba15d

#5da7bb · #725dbb

#bb5d78 · #78bb5d

Split-complementary

Open in tool →

#bb725d · #a7bb5d

#bb5da7 · #bba15d · #5dbb72

Contrast

#5d78bb as textRatioAAAA largeAAAFix
Aaon white
4.31:1failpassfail
  • AA: use #5672b8 as the text (4.67:1)
  • AAA: use #3e5693 as the text (7.1:1)
  • AA: or shift the background to #0d0d0d (4.51:1)
Aaon black
4.87:1passpassfail
  • AAA: use #8196ca as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5d78bb 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

#5d78bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5d78bb
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 #5d78bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5d78bb-9ca3c4-df704e-211f2d-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