Color

#4b99ec

#4b99ec
hex#4b99ec
rgbrgb(75, 153, 236)
hslhsl(211, 81%, 61%)
oklchoklch(0.672 0.146 252.1)
Closest name: cornflowerblue (#6495ed)Relative luminance 0.3033

Colors that go with #4b99ec

Charcoal, Peru 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 →

#ec9e4b

#4be9ec · #4e4bec

#ec4b99 · #99ec4b

Split-complementary

Open in tool →

#ec4e4b · #e9ec4b

#ec4be9 · #ec9e4b · #4bec4e

Contrast

#4b99ec as textRatioAAAA largeAAAFix
Aaon white
2.97:1failfailfail
  • AA: use #1775d9 as the text (4.58:1)
  • AAA: use #1157a2 as the text (7.22:1)
  • AA: or shift the background to #2e2e2e (4.57:1)
  • AAA: or shift the background to #000000 (7.07:1)
Aaon black
7.07:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b99ec 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

#4b99ec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4b99ec
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 #4b99ec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b99ec-9cabc4-df534e-1f202d-e9f1f1?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