Color

#156bb2

#156bb2
hex#156bb2
rgbrgb(21, 107, 178)
hslhsl(207, 79%, 39%)
oklchoklch(0.518 0.135 249.6)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1389

Colors that go with #156bb2

Charcoal, Crimson and Sienna 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 →

#b25c15

#15b2aa · #151db2

#b2156b · #6bb215

Split-complementary

Open in tool →

#b2151d · #b2aa15

#aa15b2 · #b25c15 · #1db215

Contrast

#156bb2 as textRatioAAAA largeAAAFix
Aaon white
5.56:1passpassfail
  • AAA: use #125b97 as the text (7.07:1)
Aaon black
3.78:1failpassfail
  • AA: use #1879c9 as the text (4.62:1)
  • AAA: use #3f9ce9 as the text (7.14:1)
  • AA: or shift the background to #e8e8e8 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #156bb2 as the background.

Brands using this color

Fonts for this mood

#156bb2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #156bb2
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 #156bb2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/156bb2-9cadc4-df4e53-1f212d-e9f1f1?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