Color

#297eff

#297eff
hex#297eff
rgbrgb(41, 126, 255)
hslhsl(216, 100%, 58%)
oklchoklch(0.616 0.208 259.2)
Closest name: Azure (#007fff)Relative luminance 0.2261

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffa929

#29eaff · #3e29ff

#ff297e · #7eff29

Split-complementary

Open in tool →

#ff3e29 · #eaff29

#ff29ea · #ffa929 · #29ff3e

Contrast

#297eff as textRatioAAAA largeAAAFix
Aaon white
3.8:1failpassfail
  • AA: use #0a6cff as the text (4.56:1)
  • AAA: use #0050c7 as the text (7.07:1)
  • AA: or shift the background to #1a1a1a (4.58:1)
Aaon black
5.52:1passpassfail
  • AAA: use #5297ff as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #297eff as the background.

Brands using this color

Fonts for this mood

#297eff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #297eff
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #297eff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/297eff-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