Color

#2158ed

#2158ed
hex#2158ed
rgbrgb(33, 88, 237)
hslhsl(224, 85%, 53%)
oklchoklch(0.526 0.231 264.2)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1342

Colors that go with #2158ed

Charcoal, Crimson 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 →

#edb721

#21bded · #5121ed

#ed2158 · #58ed21

Split-complementary

Open in tool →

#ed5121 · #bded21

#ed21bd · #edb721 · #21ed51

Contrast

#2158ed as textRatioAAAA largeAAAFix
Aaon white
5.7:1passpassfail
  • AAA: use #1247d9 as the text (7.17:1)
Aaon black
3.68:1failpassfail
  • AA: use #3e6def as the text (4.64:1)
  • AAA: use #7194f4 as the text (7.24:1)
  • AA: or shift the background to #e6e6e6 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2158ed as the background.

Brands using this color

Fonts for this mood

#2158ed reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2158ed
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 #2158ed and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2158ed-9ca2c4-df724e-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