Color

#2990ff

#2990ff
hex#2990ff
rgbrgb(41, 144, 255)
hslhsl(211, 100%, 58%)
oklchoklch(0.654 0.188 254.2)
Closest name: dodgerblue (#1e90ff)Relative luminance 0.2764

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ff9729

#29fbff · #2c29ff

#ff2990 · #90ff29

Split-complementary

Open in tool →

#ff2c29 · #fbff29

#ff29fb · #ff9729 · #29ff2c

Contrast

#2990ff as textRatioAAAA largeAAAFix
Aaon white
3.22:1failpassfail
  • AA: use #0071eb as the text (4.6:1)
  • AAA: use #0056b3 as the text (7.04:1)
  • AA: or shift the background to #292929 (4.52:1)
Aaon black
6.53:1passpassfail
  • AAA: use #3898ff 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 #2990ff as the background.

Brands using this color

Fonts for this mood

#2990ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2990ff
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 #2990ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2990ff-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