Color

#1f4889

#1f4889
hex#1f4889
rgbrgb(31, 72, 137)
hslhsl(217, 63%, 33%)
oklchoklch(0.41 0.118 259.4)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0673

Tints & shades

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

Harmonies

Complementary

Open in tool →

#89611f

#1f7d89 · #2c1f89

#891f48 · #48891f

Split-complementary

Open in tool →

#892c1f · #7d891f

#891f7d · #89611f · #1f892c

Contrast

#1f4889 as textRatioAAAA largeAAAFix
Aaon white
8.95:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #3773d2 as the text (4.55:1)
  • AAA: use #6996dd as the text (7.01:1)
  • AA: or shift the background to #b8b8b8 (4.51:1)
  • AAA: or shift the background to #e6e6e6 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f4889 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

#1f4889 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f4889
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 #1f4889 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f4889-9ca7c4-df624e-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