Color

#1d6396

#1d6396
hex#1d6396
rgbrgb(29, 99, 150)
hslhsl(205, 68%, 35%)
oklchoklch(0.483 0.106 245.1)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.1139

Colors that go with #1d6396

Charcoal, Royal Blue and Sienna 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 →

#964f1d

#1d968c · #1d2796

#961d63 · #63961d

Split-complementary

Open in tool →

#961d27 · #968c1d

#8c1d96 · #964f1d · #27961d

Contrast

#1d6396 as textRatioAAAA largeAAAFix
Aaon white
6.41:1passpassfail
  • AAA: use #1a5b89 as the text (7.24:1)
Aaon black
3.28:1failpassfail
  • AA: use #237ab8 as the text (4.55:1)
  • AAA: use #439cdb as the text (7.02:1)
  • AA: or shift the background to #d9d9d9 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d6396 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1d6396 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d6396
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 #1d6396 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d6396-9cafc4-df4e58-1f212d-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