Color

#2359be

#2359be
hex#2359be
rgbrgb(35, 89, 190)
hslhsl(219, 69%, 44%)
oklchoklch(0.489 0.169 261.5)
Closest name: Denim (#1560bd)Relative luminance 0.1122

Colors that go with #2359be

Charcoal, Crimson 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 →

#be8723

#23a6be · #3a23be

#be2359 · #59be23

Split-complementary

Open in tool →

#be3a23 · #a6be23

#be23a6 · #be8723 · #23be3a

Contrast

#2359be as textRatioAAAA largeAAAFix
Aaon white
6.47:1passpassfail
  • AAA: use #2053b1 as the text (7.16:1)
Aaon black
3.24:1failpassfail
  • AA: use #3971db as the text (4.56:1)
  • AAA: use #6c96e4 as the text (7.12:1)
  • AA: or shift the background to #d9d9d9 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2359be as the background.

Brands using this color

Fonts for this mood

#2359be reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2359be
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 #2359be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2359be-9ca5c4-df664e-211f2d-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