Color

#4599b5

#4599b5
hex#4599b5
rgbrgb(69, 153, 181)
hslhsl(195, 45%, 49%)
oklchoklch(0.643 0.091 222.9)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2738

Colors that go with #4599b5

Charcoal, Amber and Blue 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.

Real palettes that use #4599b5

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b56145

#45b599 · #4561b5

#b54599 · #99b545

Split-complementary

Open in tool →

#b54561 · #b59945

#9945b5 · #b56145 · #61b545

Contrast

#4599b5 as textRatioAAAA largeAAAFix
Aaon white
3.24:1failpassfail
  • AA: use #387d94 as the text (4.64:1)
  • AAA: use #2a5e6f as the text (7.17:1)
  • AA: or shift the background to #262626 (4.67:1)
Aaon black
6.48:1passpassfail
  • AAA: use #4ea0bc as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4599b5 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

#4599b5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4599b5
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 #4599b5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4599b5-9cb5c4-df4e70-1f242d-e9f1ef?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