Color

#2491ff

#2491ff
hex#2491ff
rgbrgb(36, 145, 255)
hslhsl(210, 100%, 57%)
oklchoklch(0.655 0.188 253.4)
Closest name: dodgerblue (#1e90ff)Relative luminance 0.2785

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ff9124

#24ffff · #2424ff

#ff2491 · #91ff24

Split-complementary

Open in tool →

#ff2424 · #ffff24

#ff24ff · #ff9124 · #24ff24

Contrast

#2491ff as textRatioAAAA largeAAAFix
Aaon white
3.2:1failpassfail
  • AA: use #0073e6 as the text (4.57:1)
  • AAA: use #0057ad as the text (7.08:1)
  • AA: or shift the background to #292929 (4.55:1)
Aaon black
6.57:1passpassfail
  • AAA: use #3399ff as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2491ff 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

#2491ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2491ff
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 #2491ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2491ff-9cabc4-df514e-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