Color

#2198d4

#2198d4
hex#2198d4
rgbrgb(33, 152, 212)
hslhsl(200, 73%, 48%)
oklchoklch(0.645 0.133 237.4)
Closest name: Blue Burst (#309cd0)Relative luminance 0.2753

Colors that go with #2198d4

Charcoal, Orange Red 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 →

#d45d21

#21d4b6 · #213fd4

#d42198 · #98d421

Split-complementary

Open in tool →

#d4213f · #d4b621

#b621d4 · #d45d21 · #3fd421

Contrast

#2198d4 as textRatioAAAA largeAAAFix
Aaon white
3.23:1failpassfail
  • AA: use #1b7cac as the text (4.64:1)
  • AAA: use #145c80 as the text (7.31:1)
  • AA: or shift the background to #292929 (4.51:1)
Aaon black
6.51:1passpassfail
  • AAA: use #229fdd as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2198d4 as the background.

Brands using this color

Fonts for this mood

#2198d4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2198d4
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 #2198d4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2198d4-9cb2c4-df4e64-1f232d-e9f1f0?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