Color

#156cd1

#156cd1
hex#156cd1
rgbrgb(21, 108, 209)
hslhsl(212, 82%, 45%)
oklchoklch(0.541 0.174 256.2)
Closest name: God of Rain (#4466cc)Relative luminance 0.1549

Colors that go with #156cd1

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 →

#d17915

#15cbd1 · #1b15d1

#d1156c · #6cd115

Split-complementary

Open in tool →

#d11b15 · #cbd115

#d115cb · #d17915 · #15d11b

Contrast

#156cd1 as textRatioAAAA largeAAAFix
Aaon white
5.12:1passpassfail
  • AAA: use #1157a7 as the text (7.13:1)
Aaon black
4.1:1failpassfail
  • AA: use #1674df as the text (4.6:1)
  • AAA: use #4f99ee as the text (7.12:1)
  • AA: or shift the background to #f2f2f2 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #156cd1 as the background.

Brands using this color

Fonts for this mood

#156cd1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #156cd1
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 #156cd1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/156cd1-9caac4-df564e-1f202d-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