Color

#299eb3

#299eb3
hex#299eb3
rgbrgb(41, 158, 179)
hslhsl(189, 63%, 43%)
oklchoklch(0.646 0.103 212.8)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2818

Colors that go with #299eb3

Charcoal, Orange Red 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.

Real palettes that use #299eb3

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b33d29

#29b382 · #2959b3

#b3299e · #9eb329

Split-complementary

Open in tool →

#b32959 · #b38229

#8229b3 · #b33d29 · #59b329

Contrast

#299eb3 as textRatioAAAA largeAAAFix
Aaon white
3.16:1failpassfail
  • AA: use #218191 as the text (4.55:1)
  • AAA: use #19606c as the text (7.16:1)
  • AA: or shift the background to #292929 (4.6:1)
Aaon black
6.64:1passpassfail
  • AAA: use #2aa5bb as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #299eb3 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

#299eb3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #299eb3
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 #299eb3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/299eb3-a2b7be-df4e7e-1f252d-e9f1ee?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