Color

#1d5987

#1d5987
hex#1d5987
rgbrgb(29, 89, 135)
hslhsl(206, 65%, 32%)
oklchoklch(0.449 0.097 245.8)
Closest name: Beyond the Sea (#005784)Relative luminance 0.0916

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#874b1d

#1d8780 · #1d2487

#871d59 · #59871d

Split-complementary

Open in tool →

#871d24 · #87801d

#801d87 · #874b1d · #24871d

Contrast

#1d5987 as textRatioAAAA largeAAAFix
Aaon white
7.42:1passpasspassPasses AAA — no fix needed.
Aaon black
2.83:1failfailfail
  • AA: use #277ab9 as the text (4.57:1)
  • AAA: use #4e9dda as the text (7.16:1)
  • AA: or shift the background to #cccccc (4.62:1)
  • AAA: or shift the background to #fafafa (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d5987 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

#1d5987 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d5987
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #1d5987 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d5987-9caec4-df4e56-1f212d-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