Color

#5b90ae

#5b90ae
hex#5b90ae
rgbrgb(91, 144, 174)
hslhsl(202, 34%, 52%)
oklchoklch(0.628 0.072 234.4)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2523

Colors that go with #5b90ae

Charcoal, Copper 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 →

#ae7a5b

#5baea3 · #5b66ae

#ae5b90 · #90ae5b

Split-complementary

Open in tool →

#ae5b66 · #aea35b

#a35bae · #ae7a5b · #66ae5b

Contrast

#5b90ae as textRatioAAAA largeAAAFix
Aaon white
3.47:1failpassfail
  • AA: use #4a7a96 as the text (4.65:1)
  • AAA: use #385c71 as the text (7.15:1)
  • AA: or shift the background to #212121 (4.64:1)
Aaon black
6.05:1passpassfail
  • AAA: use #6c9bb7 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b90ae as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #5b90ae
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 #5b90ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b90ae-9cb1c4-df4e5f-1f222d-e9f1f0?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