Color

#2108dd

#2108dd
hex#2108dd
rgbrgb(33, 8, 221)
hslhsl(247, 93%, 45%)
oklchoklch(0.417 0.273 268.4)
Closest name: Brutally Blue (#0022dd)Relative luminance 0.0572

Colors that go with #2108dd

Charcoal, Crimson and Cobalt 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 →

#c5dd08

#085add · #8c08dd

#dd2108 · #08dd21

Split-complementary

Open in tool →

#dd8c08 · #5add08

#dd085a · #c5dd08 · #08dd8c

Contrast

#2108dd as textRatioAAAA largeAAAFix
Aaon white
9.8:1passpasspassPasses AAA — no fix needed.
Aaon black
2.14:1failfailfail
  • AA: use #6f5df9 as the text (4.61:1)
  • AAA: use #9689fb as the text (7.27:1)
  • AA: or shift the background to #b0b0b0 (4.52:1)
  • AAA: or shift the background to #dbdbdb (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2108dd 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

#2108dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2108dd
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 #2108dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2108dd-a59cc4-dfaa4e-271f2d-e9ecf1?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