Color

#2e309e

#2e309e
hex#2e309e
rgbrgb(46, 48, 158)
hslhsl(239, 55%, 40%)
oklchoklch(0.387 0.173 274)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0516

Colors that go with #2e309e

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 →

#9e9c2e

#2e689e · #642e9e

#9e2e30 · #309e2e

Split-complementary

Open in tool →

#9e642e · #689e2e

#9e2e68 · #9e9c2e · #2e9e64

Contrast

#2e309e as textRatioAAAA largeAAAFix
Aaon white
10.33:1passpasspassPasses AAA — no fix needed.
Aaon black
2.03:1failfailfail
  • AA: use #696bd3 as the text (4.64:1)
  • AAA: use #8c8ede as the text (7.04:1)
  • AA: or shift the background to #adadad (4.6:1)
  • AAA: or shift the background to #d6d6d6 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2e309e 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

#2e309e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2e309e
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 #2e309e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2e309e-a09cc4-df964e-251f2d-e9edf1?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