Color

#3127be

#3127be
hex#3127be
rgbrgb(49, 39, 190)
hslhsl(244, 66%, 45%)
oklchoklch(0.41 0.22 273.7)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0582

Colors that go with #3127be

Charcoal, Steel Blue and Cornflower 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.

Real palettes that use #3127be

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#b4be27

#2769be · #7d27be

#be3127 · #27be31

Split-complementary

Open in tool →

#be7d27 · #69be27

#be2769 · #b4be27 · #27be7d

Contrast

#3127be as textRatioAAAA largeAAAFix
Aaon white
9.7:1passpasspassPasses AAA — no fix needed.
Aaon black
2.16:1failfailfail
  • AA: use #6f67e0 as the text (4.69:1)
  • AAA: use #938de8 as the text (7.22:1)
  • AA: or shift the background to #b3b3b3 (4.63:1)
  • AAA: or shift the background to #dbdbdb (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3127be 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

#3127be reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3127be
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 #3127be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3127be-a39cc4-dfa24e-261f2d-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