Color

#1591c6

#1591c6
hex#1591c6
rgbrgb(21, 145, 198)
hslhsl(198, 81%, 43%)
oklchoklch(0.62 0.126 234.4)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2449

Colors that go with #1591c6

Charcoal, Red 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 →

#c64a15

#15c6a3 · #1538c6

#c61591 · #91c615

Split-complementary

Open in tool →

#c61538 · #c6a315

#a315c6 · #c64a15 · #38c615

Contrast

#1591c6 as textRatioAAAA largeAAAFix
Aaon white
3.56:1failpassfail
  • AA: use #127dab as the text (4.62:1)
  • AAA: use #0e5f81 as the text (7.06:1)
  • AA: or shift the background to #212121 (4.52:1)
Aaon black
5.9:1passpassfail
  • AAA: use #17a2de as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1591c6 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

#1591c6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1591c6
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 #1591c6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1591c6-9cb3c4-df4e69-1f232d-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