Color

#2b357d

#2b357d
hex#2b357d
rgbrgb(43, 53, 125)
hslhsl(233, 49%, 33%)
oklchoklch(0.365 0.122 272.9)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0454

Colors that go with #2b357d

Charcoal, Steel Blue and Blue 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 →

#7d742b

#2b5e7d · #4b2b7d

#7d2b35 · #357d2b

Split-complementary

Open in tool →

#7d4b2b · #5e7d2b

#7d2b5e · #7d742b · #2b7d4b

Contrast

#2b357d as textRatioAAAA largeAAAFix
Aaon white
11.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #636fca as the text (4.66:1)
  • AAA: use #8992d7 as the text (7.16:1)
  • AA: or shift the background to #a6a6a6 (4.52:1)
  • AAA: or shift the background to #cfcfcf (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b357d 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

#2b357d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b357d
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 #2b357d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b357d-9c9cc4-df884e-241f2d-e9eef1?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