Color

#356b97

#356b97
hex#356b97
rgbrgb(53, 107, 151)
hslhsl(207, 48%, 40%)
oklchoklch(0.511 0.091 245.5)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1351

Colors that go with #356b97

Charcoal, Rust 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 →

#976135

#359792 · #353a97

#97356b · #6b9735

Split-complementary

Open in tool →

#97353a · #979235

#923597 · #976135 · #3a9735

Contrast

#356b97 as textRatioAAAA largeAAAFix
Aaon white
5.67:1passpassfail
  • AAA: use #2d5b80 as the text (7.19:1)
Aaon black
3.7:1failpassfail
  • AA: use #3d7bae as the text (4.64:1)
  • AAA: use #649bc9 as the text (7.07:1)
  • AA: or shift the background to #e6e6e6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #356b97 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#356b97 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #356b97
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 #356b97 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/356b97-9cadc4-df4e53-1f212d-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