Color

#356e8d

#356e8d
hex#356e8d
rgbrgb(53, 110, 141)
hslhsl(201, 45%, 38%)
oklchoklch(0.513 0.077 234.8)
Closest name: Astral (#376f89)Relative luminance 0.1383

Colors that go with #356e8d

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 →

#8d5435

#358d7f · #35428d

#8d356e · #6e8d35

Split-complementary

Open in tool →

#8d3542 · #8d7f35

#7f358d · #8d5435 · #428d35

Contrast

#356e8d as textRatioAAAA largeAAAFix
Aaon white
5.58:1passpassfail
  • AAA: use #2d5d76 as the text (7.15:1)
Aaon black
3.77:1failpassfail
  • AA: use #3c7c9f as the text (4.58:1)
  • AAA: use #5c9ec1 as the text (7.12:1)
  • AA: or shift the background to #e8e8e8 (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 #356e8d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#356e8d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #356e8d
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 #356e8d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/356e8d-9cb1c4-df4e62-1f222d-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