Color

#4b8ace

#4b8ace
hex#4b8ace
rgbrgb(75, 138, 206)
hslhsl(211, 57%, 55%)
oklchoklch(0.622 0.122 252)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2413

Colors that go with #4b8ace

Charcoal, Copper 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 →

#ce8e4b

#4bcbce · #4d4bce

#ce4b8a · #8ace4b

Split-complementary

Open in tool →

#ce4d4b · #cbce4b

#ce4bcb · #ce8e4b · #4bce4d

Contrast

#4b8ace as textRatioAAAA largeAAAFix
Aaon white
3.6:1failpassfail
  • AA: use #3578c0 as the text (4.57:1)
  • AAA: use #275a90 as the text (7.12:1)
  • AA: or shift the background to #1f1f1f (4.57:1)
Aaon black
5.83:1passpassfail
  • AAA: use #639ad4 as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b8ace as the background.

Brands using this color

Fonts for this mood

#4b8ace reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4b8ace
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 #4b8ace and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b8ace-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