Color

#4991fd

#4991fd
hex#4991fd
rgbrgb(73, 145, 253)
hslhsl(216, 98%, 64%)
oklchoklch(0.664 0.176 258.5)
Closest name: dodgerblue (#1e90ff)Relative luminance 0.2876

Colors that go with #4991fd

Charcoal, Medium Sea Green and Tomato 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 #4991fd

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fdb549

#49ebfd · #5b49fd

#fd4991 · #91fd49

Split-complementary

Open in tool →

#fd5b49 · #ebfd49

#fd49eb · #fdb549 · #49fd5b

Contrast

#4991fd as textRatioAAAA largeAAAFix
Aaon white
3.11:1failpassfail
  • AA: use #0d6dfd as the text (4.54:1)
  • AAA: use #0250c5 as the text (7.1:1)
  • AA: or shift the background to #2b2b2b (4.55:1)
Aaon black
6.75:1passpassfail
  • AAA: use #5397fd as the text (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4991fd 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

#4991fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4991fd
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 #4991fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4991fd-9ca7c4-df5f4e-201f2d-e9f0f1?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