Color

#1558bc

#1558bc
hex#1558bc
rgbrgb(21, 88, 188)
hslhsl(216, 80%, 41%)
oklchoklch(0.482 0.171 259.3)
Closest name: Denim (#1560bd)Relative luminance 0.1077

Colors that go with #1558bc

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 →

#bc7915

#15abbc · #2615bc

#bc1558 · #58bc15

Split-complementary

Open in tool →

#bc2615 · #abbc15

#bc15ab · #bc7915 · #15bc26

Contrast

#1558bc as textRatioAAAA largeAAAFix
Aaon white
6.66:1passpassfail
  • AAA: use #1454b3 as the text (7.12:1)
Aaon black
3.15:1failpassfail
  • AA: use #2371e7 as the text (4.59:1)
  • AAA: use #5e97ed as the text (7.13:1)
  • AA: or shift the background to #d6d6d6 (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 #1558bc as the background.

Brands using this color

Fonts for this mood

#1558bc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1558bc
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 #1558bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1558bc-9ca7c4-df5f4e-201f2d-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