Color

#3c98fb

#3c98fb
hex#3c98fb
rgbrgb(60, 152, 251)
hslhsl(211, 96%, 61%)
oklchoklch(0.673 0.17 253.1)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3038

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb9f3c

#3cf8fb · #3f3cfb

#fb3c98 · #98fb3c

Split-complementary

Open in tool →

#fb3f3c · #f8fb3c

#fb3cf8 · #fb9f3c · #3cfb3f

Contrast

#3c98fb as textRatioAAAA largeAAAFix
Aaon white
2.97:1failfailfail
  • AA: use #0572e6 as the text (4.61:1)
  • AAA: use #0456af as the text (7.11:1)
  • AA: or shift the background to #2e2e2e (4.58:1)
  • AAA: or shift the background to #000000 (7.08:1)
Aaon black
7.08:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c98fb as the background.

Brands using this color

Fonts for this mood

#3c98fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c98fb
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 #3c98fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c98fb-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