Color

#0398e2

#0398e2
hex#0398e2
rgbrgb(3, 152, 226)
hslhsl(200, 97%, 45%)
oklchoklch(0.65 0.151 241.2)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.2797

Colors that go with #0398e2

Charcoal, Orange Red and Amber 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e24e03

#03e2bd · #0329e2

#e20398 · #98e203

Split-complementary

Open in tool →

#e20329 · #e2bd03

#bd03e2 · #e24e03 · #29e203

Contrast

#0398e2 as textRatioAAAA largeAAAFix
Aaon white
3.19:1failpassfail
  • AA: use #037dba as the text (4.52:1)
  • AAA: use #025e8d as the text (7.03:1)
  • AA: or shift the background to #292929 (4.57:1)
Aaon black
6.59:1passpassfail
  • AAA: use #049fec as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0398e2 as the background.

Brands using this color

Fonts for this mood

#0398e2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0398e2
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 #0398e2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0398e2-9cb2c4-df4e64-1f232d-e9f1f0?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