Color

#2b58de

#2b58de
hex#2b58de
rgbrgb(43, 88, 222)
hslhsl(225, 73%, 52%)
oklchoklch(0.516 0.21 265.2)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1277

Colors that go with #2b58de

Charcoal, Sea Green and Amber 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 →

#deb12b

#2bb1de · #582bde

#de2b58 · #58de2b

Split-complementary

Open in tool →

#de582b · #b1de2b

#de2bb1 · #deb12b · #2bde58

Contrast

#2b58de as textRatioAAAA largeAAAFix
Aaon white
5.91:1passpassfail
  • AAA: use #204ccf as the text (7.01:1)
Aaon black
3.55:1failpassfail
  • AA: use #466de2 as the text (4.55:1)
  • AAA: use #7693ea as the text (7.13:1)
  • AA: or shift the background to #e3e3e3 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b58de as the background.

Brands using this color

Fonts for this mood

#2b58de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b58de
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 #2b58de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b58de-9ca1c4-df754e-221f2d-e9eff1?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